New Haskell Debugger Release: v0.13

Thanks! That bug mentioned is fixed in master, just not released. Fortunately, that error message just means the stack decoding is broken at that location. This typically only happens on top-level functions. If you step further into other functions you should find a better stack trace (even more so with IPE information) and no longer get that message. That error doesn’t prevent debugging, just disables the stack trace when it happens. Do open bug reports if you find anything more, happy to have them!