I'm running a Mac with OS X 10.5.8, java 1.5.0_20, Eclipse IDE for JaveEEE developers 3.5 Carbon or Cocoa 32-bit. I installed the Epic plugin 0.6.35.
When I try to add a breakpoint with the menu, the right-click in the gutter, or with the keyboard shortcut, I keep getting a pop-up dialog box that says 'An internal error occurred during "Toggle Line Breakpoint (epic)"
It would have been helpful if you had included an exception stack trace found in the workspace's error log.
I got the same error just now. Running on Windows 7 Enterprise 64 Bit
Eclipse IDE for Java Developers
Version: Mars.2 Release (4.5.2)
Here is the stacktrace
!ENTRY org.eclipse.core.jobs 4 2 2016-06-22 10:50:09.375
!MESSAGE An internal error occurred during: "Toggle Line Breakpoint (epic)".
!STACK 0
java.lang.NullPointerException
at org.epic.debug.PerlLineBreakpoint$1.run(PerlLineBreakpoint.java:82)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2241)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2225)
at org.epic.debug.PerlLineBreakpoint.run(PerlLineBreakpoint.java:143)
at org.epic.debug.PerlLineBreakpoint.createPerlLineBreakpoint(PerlLineBreakpoint.java:91)
at org.epic.debug.PerlLineBreakpoint.<init>(PerlLineBreakpoint.java:53)
at org.epic.debug.PerlLineBreakpoint.<init>(PerlLineBreakpoint.java:45)
at org.epic.debug.ui.action.ToggleBreakpointAdapter.createLineBreakpoint(ToggleBreakpointAdapter.java:203)
at org.epic.debug.ui.action.ToggleBreakpointAdapter.access$1(ToggleBreakpointAdapter.java:174)
at org.epic.debug.ui.action.ToggleBreakpointAdapter$1.run(ToggleBreakpointAdapter.java:118)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Maybe a breakpoint on a resource that does not exist in your workspace anymore...? Have you tried clearing all breakpoints and adding them again?