Installation Failed: Invalid Argument -iOS Extension

Check if the Bundle Identifier isn't empty in the Info.plist

I had the same issue. This sequence helped for me:

Xcode doesn't like it when you have a referenced directory called 'Resources' within your resource bundle (see timrex)

1) Remove 'Resources' directory from your project's tree;

2) Reset content and settings in iPhone simulator;

3) Press Shift+Cmd+Alt+K and click 'Clean' or Shift+Cmd+K in xCode window;

After 2 days of research I have found the answer which I believe is an xcode bug.

Basically this is caused by having different build name on your XCode build settings. Making them uniform should solve the problem. As shown here https://devforums.apple.com/message/1047770#1047770

I hope this helps anyone stumbled upon this question.