I get this exception occasionally, usually after a crash in our app and then trying to open the app again. I was able to copy and save the stack trace today, so here it is: 09-07 12:14:42.581 ...
Argument for @NotNull parameter 'directory' of mobi/hsz/idea/gitignore/util/Utils.isUnder must not be null java.lang.IllegalArgumentException: Argument for @NotNull ...