Device build fails after upgrading to Xcode 8

Question

Since upgrading to Xcode 8 I cannot run any app on my iPhone. The build fails with error:

error: Task failed with exit 0 signal 11

Answer 1

Clean the project and clean the build folder.

• Project->Clean

  Project-> (hold alt) Clean

I have ran into many issues after upgrading and a full clean has fixed them.