Errors running Semafor (ubuntu)

[TSyn VVendy]

hi,

I get this error when running semafor in ubuntu virtual.

Exception in thread "main" java.lang.NumberFormatException: null
    at java.lang.Integer.parseInt(Integer.java:542)
    at java.lang.Integer.parseInt(Integer.java:615)
    at edu.cmu.cs.lti.ark.util.CommandLineOptions$IntOption.set(CommandLineOptions.java:187)
    at edu.cmu.cs.lti.ark.util.CommandLineOptions.init(CommandLineOptions.java:267)
    at edu.cmu.cs.lti.ark.fn.utils.FNModelOptions.<init>(FNModelOptions.java:40)
    at edu.cmu.cs.lti.ark.fn.utils.FNModelOptions.<init>(FNModelOptions.java:36)
    at edu.cmu.cs.lti.ark.fn.Semafor.main(Semafor.java:94)

Not sure what happened, anyone can help me on this?

Thanks

[Baradwaj Aryasomayajula]

HI, Can you give the commands of what you have run.

[Baradwaj Aryasomayajula]

HI, while giving the path for the input file, remove the extension of the file. It seems like, the program is designed in such a way that any input file can be given with a sentence for a line. Hope this helps.