I am using IDEA 11.1.2 CE with plugin 0.5.907. When an exception is thrown, I can click on some files within the stack trace and jump to the file/line related to that part of the trace (links are shown in blue) but others I cannot (links are shown in gray). Instead, when I click on the file name / line number from the trace inside the Run frame I am taken to an outline of the .class file with "Sources not found" at the top. After pointing IDEA to the source by trying "Attach Sources", I am still told that sources are not found. Strangely, this doesn't happen with all files in my project. From the same stack trace I am able to jump to source of files that do not show the .scala extension.
Can anyone point me to the problem here?