Tool trace error: Failed to complete task: operation could not be completed. (FBSOpenApplicationErrorDomain

Question

Running tools from the command line gave me this error:

Instruments Trace Error : Target failed to run: The operation couldn't be completed. (FBSOpenApplicationErrorDomain error 8.) : Failed to launch process with bundle identifier 

Any idea what the problem is and how to fix it?

Answer 1

In my case, I think this is a profiling problem. Try to enter the Product / Scheme / Edit schema and change the profile assembly configuration from Release to Debug or vice versa - this made me work for me.