LLDB: Couldn't IRGen expression

Question

When I\'m running a unit test and want to debug something, I set a breakpoint and type for instance \"po myVariable\". The response I get from LLDB is:

error: Co         


        

Answer 1

edit:

Since this answer gets some attention, please note that it describes just a quick fix.
If you encounter the problem frequently, check the other answers for a more permanent solution.
For me, cleaning the build folder did the trick.
Edit 2: Cleaning doesn't help in some cases, carthage update --platform iOS --no-use-binaries always does for me.

original answer:

I have a quick and dirty solution that makes this work.

• select the first accessible frame in your debug navigator, usually main

• type something in the debugger, for example po self

• select the original frame in the debug navigator and execute your command, it should work now

I don't know why it works, but it does for me. I just found out by chance.
I'd be interested to hear an explanation from somebody with more insights (I am using Carthage in my project).