Getting Started

interested in using this

Hello, everyone. To our knowledge, we found that most of the early-accessed articles exported from Web of Science could not be processed by CitNetExplorer with the error of not finding the "publication year" data from the plain text files.
This problem has been solved in our article "A bibliometric analysis of artificial intelligence chatbots in educational contexts" by Lin & Yu (2023). You can include early-accessed records for a citation network analysis to update your included literature! We extensively welcome users' comments and citations to our methods. We did not find citations for this solution, and we solved this problem originally and independently. If you have also adopted this method similar to ours, we shall express our sincere gratitude and proper credit to you as well.
I will be happy to assist you to include these article records in your CitNetExplorer!

Is it possible to use another database than 'Web of Science' as my university does not provide free access to it?

Hi.
I am getting this error when openning a web of science file. No "early access" files exist on my database.
java.lang.arrayindexoutofboundsexception: 0
Thank you for helping.

Everything is very opesn with a very clear clarification of the challenges.
It was really informative. Your site is very
helpful. Thanks for sharing!
Farmacología deportiva site Desarrollar músculo

I have about 800 refs about one topic On site automation in Construction.
These are all referenced in Endnote (RIS file export for VosViewer ready)
If I want to consider trend analysis I don't understand how to import this RIS file or the right methode to start a systematic review.
Please advice me,
Kind regards,
Paul Maesschalck

Would like to use this for research purposes.

Hello! Despite I have 250 records, I don't understand why when opening the file if the software, it's building the network only with 50 of them. Years 1981 to 2004 and excluding 2005 to the present...I don't see the way to change this from the settings...I would appreciate any help!

I would like use this to make my researching. How does I need to proceed?
Euriepdes Gomes

How to exclude a publication and re-cluster again without it? after "removing from group x" and "do not show publication", I try clustering again, the publication is still in my network. Do I have to download the list again from web of science? or I need to delete the lines in txt. file mutually and open in CitNetExplorer again?

Dear Ludo,
I have downloaded the tab limited file from wos. But when ı opened the file from citnet explorer. Program gives me an allert: "can not find DOI number (DI) field".
I opened the tab limited file which I have downloaded form wos , I saw the DI title and Doi numbers. what is wrong in my steps? Could you help me please?

Dear Ludo,
I have installed CitNetExplorer on macOS Big Sur 11.5.2. and the software won't be able to read the .txt files. Would you kindly point out at the solution to the problem?
Thank you

Hey Ludo,
somehow I have problems to run CitNet on my system:
Ubuntu 20.04 and I tried both Java-11 and Java-8 to run it and somehow I only get the "start screen" and the program closes afterwards.
Do you maybe know, why this happens?

When I tried to import the txt file downloaded from the Web of Science. I got the following message: Publication without year field. So I always failed to import my file for further analysis. How I can resolve this problem? Thanks.

Hello developer,
Thank you for the nice software. I want to ask if the clustering results using VOSviewer as similar to CitNetExplorer? Do their results provide the same number of clustering and items included in each cluster?
Thank you very much.

Dear Ludo,
Hi, I am using Mac with the latest OS (Catalina 10.15.7). The problem is that, my CitNetExplorer cannot find txt file even though that txt file exists in the folder. (For example, /Users/userID/Downloads folder has JOI.txt in it. But CitNetExplorer doesn't show this JOI.txt file so that I cannot open that txt file.)
Should I change the JAVA setting? I tried many ways but kept failing. Looking forward to your comments.

Dear Sir,
I am a research scholar and I wish to study more on citation networks. I am a new user of CitNetExplorer. Can you please share the details of the Web of Science dataset format and some examples of such files, as I am not able to access the same. Anticipating a positive response.

Hello,
I am a new user of citnetexplorer.
I have uploaded txt file with articles exported from the web of science core collection.
However, when displayed in the software, I was not able to visualize citation links because the citation score is zero. yet, when I google some of the articles, they have been cited several times. Please can you guide on steps I missed in the process?
Many thanks for your assistance.

hi
I am new in using your software and I have 34 articles and I want to find cross reference diagram between these articles so in the beginning when I read your tutorial it wroten that I should enter name of publication and year of publication and then it will be for example 420 results and then I should export them in order to use in your software but my question is that is it possible to search only my article and export them or I have to put all articles then in software I have to select my articles?

Thank you for providing this amazing problem. I have a problem that may be due to my intended question. I want to visualize citation patterns between 15 papers that all referr to 3 of 4 original papers, and keep citating themselves. However after loading these papers ( I identified them via a systematic review) into webex and later into citnex, there are no links between the papers. Even though i established the links manually. In other words all articles have 0 citation links. Is this due to something i did wrong?

Just downloaded CitNetExplorer on a Mac running the latest OS (Catalina 10.15.7). when I open a WoS tab-delimited search file, I get the error message; "An unexpected error has occurred (java.lang.NullPointerException). The program will be terminated". The pgme then terminates when I hit OK and the following msg appears; "The Java JAR file "CitNetExplorer.jar" could not be launched. Check the console for possible error messages"
I should also add that I have successfully opened the same file on the VOSviewer installed in the same computer without any problems. I do not understand why Java doesn't work with CitNetExplorer?

In the citation network tab, when I press the "Update publications ... "-button in the bottom of the pages, there is a field named "Number of publications". When I try to increase this to above 100, it just goes down to 100 again.
Is there a way to show more than 100 publications in the citation network?
Best regards
Anders

Hello,
Thanks for the sofware.
When I attempt to open a Web of Science file, I get the following error message: "Cannot find DOI number (DI) field" I opened the file and deleted the articles without DOIs but still got the same message.
Do you have any suggestions for me?
Thanks

Dear Ludo.
I recently started trying to work with CitNetExplorer as it has some features that VosViewer does not. I am working with a set of 35 thousand + papers that I have downloaded the "savedrecs.txt" for from WoS (using the separated by tab (win)). It resulted in 71 of these documents that I tried adding to the CitNetExplorer application to work with them. But I got a pop up box showing the "An unexpected error has occured (java.lang.NullPointerException). The program will be terminated". Turns out, some of my "savedrecs.txt" does work by themselves or in combination with some others, but some do not (at all). I tried re downloading the documents as plain texts and got a different message "Error while reading Web of Science file 'c:user...savedrecs.txt' (line 11469): Publication without year (PY) field". So I tried manually finding the line that was causing trouble to see if I could enter the year or find the title of the paper to exclude it from the WoS list and turns out my document has only 4324 lines.
So, do you have any advice on how I could fix or get around the problem?
Thank you,
Davidson

Dear Ludo
I want use CitNetExplorer for analyzing Patent Citation Network.(great tools ever!) But CitNetExplorer import only web of science's file.
And I don't know and cannot find web of science's file format. X(
If you give me some link(web-site) or put on your site some of web of science's file(sample files), I make my patent citation data to web of science file format. I'm sorry my bad English. Thanks in advance.

Hello, I extracted 123 publications from my database but when I tried opening it in CitNetExplorer, in the left box said that there are only 119 publications. What could be the reason for this reduction? Thanks in advance.

Dear Ludo,
Is it possible to put CitNet maps online as for Vosviewer ones?
Thanks

I'm getting the "java.lang.NullPointerException" error on import despite excluding all early access documents from my Web of Science search results. Any idea what else might cause the error?

There is one bug I noticed:
This is my result page from Web of Science:
http://apps.webofknowledge.com/Search.do?product=WOS&SID=8C4iX5VgzlWuSmz9fVG&search_mode=GeneralSearch&prID=c269aa1b-b07d-4703-8ee4-cc5ec170ee79
Just in case you need my searching criteria:
You searched for: TOPIC: (independence screening) OR TOPIC: (variable screening) OR TOPIC: (feature screening)
Refined by: WEB OF SCIENCE CATEGORIES: ( STATISTICS PROBABILITY ) AND PUBLICATION YEARS: ( 2020 OR 2019 )
Timespan: 1996-2020. Indexes: SCI-EXPANDED, SSCI, A&HCI, CPCI-S, CPCI-SSH, BKCI-S, BKCI-SSH, ESCI, CCR-EXPANDED, IC.
I exported the data as specified in the "Getting started.pdf", but when I open the file, the program died... One exported data entry that possibly crashed the program is from this paper:
Ultra-high dimensional variable screening via Gram-Schmidt orthogonalization
By: Wang, Huiwen; Liu, Ruiping; Wang, Shanshan; et al.
COMPUTATIONAL STATISTICS
How the above information helpful for the support team.

Hi.
Im trying to execute the program in mine laptop both Mac and windows, but, has been imposible, the program report the following "java.lang.NullPointerException" error.
What can I do to fix ti?

Is it possible to import Scopus' finding for Cluster Mapping by CitNetExplorer software?

Dear Ludo, is it possible to save the list of publications of a citation pattern?
thanks in advance
matteo

Can someone please give some hints on how I might get started providing
CitNetExplorer both with (1) data on publications and (2) with data on citation relations between publications. I am using Pubmed and I would like to work out how to export data to construct a publication file and a citation file. Is this possible? What do I need to do in order to get started?

Hi, can you use data from Pubmed / Medline? If so, how should I export it?
Thanks
Richard

Your tool looks incredible. It looks like an incredibly useful tool to conduct an initial literature survey in support of a structured literature review. I am going to download and see if it might be helpful. Nice work. Brilliant, actually!!

Hi.i get some data from web of science but the citnetexplorer give me error. Error while reading web of science file.....file is not valid.heeeeelp me😰

Hi,
I'm literally just getting started. I worked through the tutorial and all was fine. However, on trying to run my own example, I keep getting the following error message:
"An unexpected error has occurred (java.lung.NullPointerException). The program will be terminated."
Any ideas what I'm doing wrong?!
Thanks in advance for your help!
Karl

Hi, loving the software so far. I am however coming into trouble trying to include referenced data of the works I've included in my analysis. Is there a way for the software to pull references in the articles and include them in the mapping analysis without me having to go into each article and extract these references and include them manually? Thanks

Hi!
Thanks for developing this tool!
I have met the same problem: "An unexpected error has occurred (java.lang.NullPointerException). The program will be terminated".
I had already excluded early accessed files, I tried to download CitNet again and reinstalled java 8, but the problem remains. I've just get open the app once, using my first search.
Could you help me?
Thanks a lot!

I have found my mistake and could import citations from Web of science. Their formatting is too specific to be replicated with a reasonable amount of efforts, so I guess CitNetExplorer does not only "allow citation networks to be imported directly from the Web of Science database", but also *needs* it. Any idea about another software that does the same with self-cropped data?
Thanks anyway for the hard work.
Philippe

how can i find a specific research field with citnetexplorer? If i download all data from one person?

Hello,
Thanks for developing CitNetExplorer. I'm getting started with it and I find it very useful.
I have and issue when importing data from Web of Science. I get this message: "An unexpected error has occurred (java.lang.NullPointerException). The program will be terminated". I found that excluding one of the publications (I pasted the register in this comment), the issue was solved. I identified the problematic publication by trial and error.
I've got this issue with other data, so it would be very helpful to know how to identify problematic publications. Thanks!
Note: following other comments, I excluded Early Access publications, but the issue stills.
J Polasik, M; Piotrowski, D Polasik, Michal; Piotrowski, Dariusz PAYMENT INNOVATIONS IN POLAND: THE ROLE OF PAYMENT SERVICES IN THE STRATEGIES OF COMMERCIAL BANKS EKONOMIA I PRAWO-ECONOMICS AND LAW English Article payment innovation; bank strategy; payment services; FinTech; payment card ADOPTION; CARDS This paper examines the significance of innovations in the area of payment services for strategies implemented by commercial banks in Poland. We propose a definition of payment innovations and present the evolution of their introduction in the Polish market, indicating the impact of legal regulations and the critical character of the new FinTech phenomenon. The analysis that we conducted was based on the results of a survey which obtained responses from 24 commercial banks representing almost the entire Polish retail banking sector based on the number of personal accounts maintained. The study helped to determine the main elements of the strategies implemented by banks in Poland. It also revealed the methods for competing in the area of payment services utilized by the banks, with innovative services as one of the leading elements. The results of the study indicated that there was a significant differentiation of applied strategies depending on a bank's size. In the case of larger banks, the main motivation for introducing payment innovations was characteristic of an offensive strategy, and for smaller banks - more often a defensive one. We also proposed a theoretical model for using the specific nature of payment innovations to build customer relationships and to apply cross-selling. [Polasik, Michal; Piotrowski, Dariusz] Nicolaus Copernicus Univ, Fac Econ Sci & Management, Dept Finance, Ul Gagarina 13A, PL-87100 Torun, Poland Polasik, M (reprint author), Nicolaus Copernicus Univ, Fac Econ Sci & Management, Dept Finance, Ul Gagarina 13A, PL-87100 Torun, Poland. michal.polasik@umk.pl; darius@econ.umk.pl Warsaw Institute of Banking; ALTERUM Grant [WIB/2014/01]; ALTERUM The article was funded by The Warsaw Institute of Banking and ALTERUM Grant No. WIB/2014/01. We would like to thank Anna Iwona Piotrowska and Natalia Kumkowska, who served as investigators. Moreover, we would like to thank Lech Kuklinski, Ph.D. the director of ALTERUM and director Pawel Widawski Ph.D. and Radoslaw Kotkowski from the Polish Bank Association for their support in carrying out this research project. [Anonymous], 2013, PROGRAM ROZWOJU OBRO; Arango C, 2015, J BANK FINANC, V55, P130, DOI 10.1016/j.jbankfin.2015.02.005; Bender C. M., 2011, INTERECONOMICS REV E, V46; Bikker J. A., 2002, EC FINANCIAL MODELLI; Bolt W., 2007, REV NETW ECON, V6, DOI [10.2202/1446-9022.1129, DOI 10.2202/1446-9022.1129]; Borestam A., 2011, ECB OCCASIONAL PAPER, V131; Canals J., 1999, EUROPEAN MANAGEMENT, V17, DOI [10.1016/s0263--2373(99)00047-x, DOI 10.1016/S0263--2373(99)00047-X]; Chakravorti S, 20031B2003 FED RES B; Chakravorti S, 2010, REV NETW ECON, V9; Church J, 2008, REV NETW ECON, V7, P337; Clark J. A, 1988, FEDERAL RESERVE BANK; Committee on Payment and Settlement Systems, 2012, INN RET PAYM; Dapp T., 2014, FINTECH DIGITAL R EV; Delis MD, 2010, OMEGA-INT J MANAGE S, V38, P268, DOI 10.1016/j.omega.2008.09.002; Deloitte, 2016, PAYM DISR EM CHALL E; DeYoung R., 2004, EC PERSPECTIVES, V28; DeYoung R., 2001, FEDERAL RESERVE BANK, VWP-01-06/2001, DOI [10.2139/ssrn.282721, DOI 10.2139/SSRN.282721]; Doligalski T., 2014, MODELE BIZNESU INTER; European Payments Council, 2009, EPC06606; Frazer P, 1985, PLASTIC ELECT MONEY; Gikas G., 1999, BANK KREDYT, V31; Gorka J., 2013, EFEKTYWNOSC INSTRUME, DOI [10.7172/978-83-63962-30-2, DOI 10.7172/978-83-63962-30-2]; Gorka J, 2014, P 2014 INT CASH C DE; Gostomski E, 2010, WSPOLCZESNA BANKOWOS; Gowrisankaran G, 2004, RAND J ECON, V35, P260, DOI 10.2307/1593691; Grzegorczyk T, 1997, STRATEGIE MARKETINGO; Grzywacz J, 2006, MARKETING DZIALALNOS; Hansen G, 2016, INNOWACJE BANKACH SA; Harasim J, 2013, J INNOVATION MANAGEM, V1; Harasim J, 2004, STRATEGIE MARKETINGO; Harasim J., 2011, EUROPEJSKI RYNEK PLA; Hernando I, 2007, J BANK FINANC, V31, P1083, DOI 10.1016/j.jbankfin.2006.10.011; Iwanczuk-Kaliska A, 2015, PROBL ZARZ, V13, P41, DOI 10.7172/1644-9584.54.3; Iwanicz-Drozdowska M., 2010, BANKOWOSC ZAGADNIENI; Kasiewicz S., 2013, SEKTOR BANKOWY MOTOR; Kasiewicz S, 2010, POLSKI SEKTOR BANKOW; Khiaonarong T, 2009, BANKING INNOVATION M, DOI [10.1007/978-3-7908-2333-2, DOI 10.1007/978-3-7908-2333-2]; Kisiel M, 2005, INTERNET KONKURENCYJ; Korenik D, 2002, KONKURENCYJNOSC KONK; Korenik D., 2006, INNOWACYJNE USLUGI B; Krupski R, 2009, KONCEPCJE STRATEGII; L'Hostis A, 2015, 2015 GLOBAL MOBILE B; Marcinkowska M, 2012, ACTA U LODZIENSIS FO; Marzec J., 2013, BANK KREDYT, V44; Matloka M, 2016, BANKI MOGA ZARABIAC; Mersch Yves, 2015, COMMUNICATION; Narodowy Bank Polski, 2012, PROGR RED OPL KART P; OECD/Eurostat, 2005, OSL MAN GUID COLL IN; Panowicz M., 2015, WYZWANIA BANKOWOSCI; Pawlowicz L, 2015, 602015 BAZ BANK; Pawlowska M, 2004, BANK KREDYT, V35; Payments Council European, 2009, EPC36208; Piotrowicz W, 2015, J GLOB INF TECH MAN, V18, P77, DOI 10.1080/1097198X.2015.1052684; Plooij M., 4712015 DNB, DOI [10.2139/ssrn.2602219, DOI 10.2139/SSRN.2602219]; Polasik M., 2012, INT J BANK ACCOUNT F, V4, P203, DOI DOI 10.1504/IJBAAF.2012.051590; Polasik M., 2012, 2652012 NBP; Polasik M, 2009, 2412009 NBP; Polasik M., 2016, ROZWOJ PRZEZ INNOWAC; Polasik M., 2007, BANKOWOSC ELEKTRONIC; Polasik M, 2013, INTEGRACJA EUROPEJSK; Polasik M, 2016, EKON PRAWO, V15, P103, DOI 10.12775/EiP.2016.007; Polasik M, 2015, PROBL ZARZ, V13, P102, DOI 10.7172/1644-9584.54.7; Polasik M, 2013, LECT NOTES BUS INF P, V141, P306, DOI 10.1007/978-3-642-40654-6_19; Polasik M, 2009, INT J BANK MARK, V27, P32, DOI 10.1108/02652320910928227; Rambure D., 2008, PAYMENT SYSTEMS SALT; Rochet J. C., 2006, REV NETW ECON, V5, P1, DOI DOI 10.2202/1446-9022.1085; Rochet JC, 2011, J EUR ECON ASSOC, V9, P462, DOI 10.1111/j.1542-4774.2011.01020.x; Rogers E.M., 1983, DIFFUSION INNOVATION; Rokita J., 2005, ZARZADZANIE STRATEGI; Shaw R., 2001, BANK STRATEGIES CHAL; Simon-Kucher & Partners, 2016, GLOB PRIC STUD 2014; Sokolowska E, 2015, ELECTRON COMMER R A, V14, P292, DOI 10.1016/j.elerap.2015.07.005; Spath D., 2012, EUROPEAN TREND SURVE; Stango Victor, 2004, REV NETW ECON, V3, P1, DOI DOI 10.2202/1446-9022.1040; Tunay KB, 2015, WORLD CONFERENCE ON TECHNOLOGY, INNOVATION AND ENTREPRENEURSHIP, P363, DOI 10.1016/j.sbspro.2015.06.335; Ward M., 2006, Information Security Technical Report, V11, P89, DOI 10.1016/j.istr.2006.03.001; Weclawski J., 2015, ANN UMCS SECTIO H OE, VXLIX; Wrzosek W., 2012, STRATEGIE MARKETINGO 78 2 2 3 3 UNIWERSYTET MIKOLAJA KOPERNIKA-NICOLAUS COPERNICUS UNIV TORUN WYDZIAL NAUK EKONOMICZNYCH & ZARZADZANIA, KATEDRA EKON, UL GAGARINA 13A, TORUN, 87-100, POLAND 1898-2255 2392-1625 EKON PRAWO Ekon. Prawo MAR 2016 15 1 73 101 10.12775/EiP.2016.006 29 Economics Business & Economics VH4DS WOS:000453148800006 DOAJ Gold 30/10/2019

Hello,
Thanks for developing CitNetExplorer. I'm getting started with it and I find it very useful.
I have and issue when importing data from Web of Science. I get this message: "An unexpected error has occurred (java.lang.NullPointerException). The program will be terminated". I found that excluding one of the publications (I pasted the register in this comment), the issue was solved. I identified the problematic publication by trial and error.
I've got this issue with other data, so it would be very helpful to know how to identify problematic publications. Thanks!
Note: following other comments, I excluded Early Access publications, but the issue stills.
J Polasik, M; Piotrowski, D Polasik, Michal; Piotrowski, Dariusz PAYMENT INNOVATIONS IN POLAND: THE ROLE OF PAYMENT SERVICES IN THE STRATEGIES OF COMMERCIAL BANKS EKONOMIA I PRAWO-ECONOMICS AND LAW English Article payment innovation; bank strategy; payment services; FinTech; payment card ADOPTION; CARDS This paper examines the significance of innovations in the area of payment services for strategies implemented by commercial banks in Poland. We propose a definition of payment innovations and present the evolution of their introduction in the Polish market, indicating the impact of legal regulations and the critical character of the new FinTech phenomenon. The analysis that we conducted was based on the results of a survey which obtained responses from 24 commercial banks representing almost the entire Polish retail banking sector based on the number of personal accounts maintained. The study helped to determine the main elements of the strategies implemented by banks in Poland. It also revealed the methods for competing in the area of payment services utilized by the banks, with innovative services as one of the leading elements. The results of the study indicated that there was a significant differentiation of applied strategies depending on a bank's size. In the case of larger banks, the main motivation for introducing payment innovations was characteristic of an offensive strategy, and for smaller banks - more often a defensive one. We also proposed a theoretical model for using the specific nature of payment innovations to build customer relationships and to apply cross-selling. [Polasik, Michal; Piotrowski, Dariusz] Nicolaus Copernicus Univ, Fac Econ Sci & Management, Dept Finance, Ul Gagarina 13A, PL-87100 Torun, Poland Polasik, M (reprint author), Nicolaus Copernicus Univ, Fac Econ Sci & Management, Dept Finance, Ul Gagarina 13A, PL-87100 Torun, Poland. michal.polasik@umk.pl; darius@econ.umk.pl Warsaw Institute of Banking; ALTERUM Grant [WIB/2014/01]; ALTERUM The article was funded by The Warsaw Institute of Banking and ALTERUM Grant No. WIB/2014/01. We would like to thank Anna Iwona Piotrowska and Natalia Kumkowska, who served as investigators. Moreover, we would like to thank Lech Kuklinski, Ph.D. the director of ALTERUM and director Pawel Widawski Ph.D. and Radoslaw Kotkowski from the Polish Bank Association for their support in carrying out this research project. [Anonymous], 2013, PROGRAM ROZWOJU OBRO; Arango C, 2015, J BANK FINANC, V55, P130, DOI 10.1016/j.jbankfin.2015.02.005; Bender C. M., 2011, INTERECONOMICS REV E, V46; Bikker J. A., 2002, EC FINANCIAL MODELLI; Bolt W., 2007, REV NETW ECON, V6, DOI [10.2202/1446-9022.1129, DOI 10.2202/1446-9022.1129]; Borestam A., 2011, ECB OCCASIONAL PAPER, V131; Canals J., 1999, EUROPEAN MANAGEMENT, V17, DOI [10.1016/s0263--2373(99)00047-x, DOI 10.1016/S0263--2373(99)00047-X]; Chakravorti S, 20031B2003 FED RES B; Chakravorti S, 2010, REV NETW ECON, V9; Church J, 2008, REV NETW ECON, V7, P337; Clark J. 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Hello,
I used to make maps via cit net explorer. after a long time this week I tried to use it but ı took a notification like this: "can not find DOI number...". After taking this notification, I read the getting started tutorial again. I got the same data set from wos. I made all the steps as in the tutorial. but again I got the same message "can not find DOI number...".Please let me know how I can solve it.
Thanks
Burcu

Running the current version on Debian 9.11 I get an exception:
$ java -jar CitNetExplorer.jar
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at org.pushingpixels.substance.internal.utils.SubstanceColorUtilities.getDefaultBackgroundColor(SubstanceColorUtilities.java:758)
This is using
$ java --version
openjdk 11.0.4 2019-07-16
OpenJDK Runtime Environment (build 11.0.4+11-post-Debian-1bpo91)
OpenJDK 64-Bit Server VM (build 11.0.4+11-post-Debian-1bpo91, mixed mode, sharing)
The problem sounds similar to https://github.com/Insubstantial/insubstantial/issues/56#issuecomment-333986024 where it is attributed to a bug in Substance, which I see is included in your jar.
The full log is attached:
$ java -jar CitNetExplorer.jar
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at org.pushingpixels.substance.internal.utils.SubstanceColorUtilities.getDefaultBackgroundColor(SubstanceColorUtilities.java:758)
at org.pushingpixels.substance.internal.utils.SubstanceColorUtilities.getBackgroundFillColor(SubstanceColorUtilities.java:661)
at org.pushingpixels.substance.internal.ui.SubstancePanelUI.__org__pushingpixels__substance__internal__ui__SubstancePanelUI__installDefaults(SubstancePanelUI.java:73)
at org.pushingpixels.substance.internal.ui.SubstancePanelUI.installDefaults(SubstancePanelUI.java)
at java.desktop/javax.swing.plaf.basic.BasicPanelUI.installUI(BasicPanelUI.java:62)
at org.pushingpixels.substance.internal.ui.SubstancePanelUI.__org__pushingpixels__substance__internal__ui__SubstancePanelUI__installUI(SubstancePanelUI.java)
at org.pushingpixels.substance.internal.ui.SubstancePanelUI.installUI(SubstancePanelUI.java)
at java.desktop/javax.swing.JComponent.setUI(JComponent.java:685)
at java.desktop/javax.swing.JPanel.setUI(JPanel.java:150)
at java.desktop/javax.swing.JPanel.updateUI(JPanel.java:126)
at java.desktop/javax.swing.JPanel.(JPanel.java:86)
at java.desktop/javax.swing.JPanel.(JPanel.java:109)
at java.desktop/javax.swing.JPanel.(JPanel.java:117)
at java.desktop/javax.swing.JRootPane.createGlassPane(JRootPane.java:521)
at java.desktop/javax.swing.JRootPane.(JRootPane.java:348)
at java.desktop/javax.swing.JFrame.createRootPane(JFrame.java:279)
at java.desktop/javax.swing.JFrame.frameInit(JFrame.java:258)
at java.desktop/javax.swing.JFrame.(JFrame.java:181)
at nl.citnetexplorer.app.CitNetExplorer.(Unknown Source)
at nl.citnetexplorer.app.CitNetExplorer$1.run(Unknown Source)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

Hi
I appreciate for developing this software firstly.
I have a problem importing data. I have received a message that was related to An unexpected error has occurred (java.lang.NullPointerException). The program will be terminated". Please let me know how I can solve it.
Thanks

Hello,
Is there way, we can other formats besides web of science into citenetexplorer software?
1. How to use SCOPUS data file into software.
2. Guidelines to use Pakej file is also not very clear
Can you please address these issues?