How can I deal with this warning: hash mismatch?

Question

After I update Xcode 7.3 and run the project,I get a warning :

hash mismatch: this object file was built against a different version of the module /Users/lu/Library/Developer/Xcode/DerivedData/ModuleCache/1Q58A4KYC5CO8/SystemConfiguration-1VJ1XGF5LU890.pcm.

How can I deal with it?

Sloven

have you tried cleaning the project? – Widgeon

This occurs for me after I run my app on a different device. So, if I ran it on my iPhone, then re-run the app on the simulator, or vice versa. Not sure why it's happening, but I can reproduce it when I switch devices. – Hoofbound

Answer 1

I have just had a similar error and you can solve it by cleaning and building again.

Regards and happy coding.

Swarth

Cleaning the project does indeed work, but why, what's they underlying cause? – Busily

I have no idea, I just made a small change in a file and then the error appear, and I just change a variable name nothing important, so is a mystery to me, in fact this is the only question about the theme that I found over the Web – Swarth

For the record, to get this to go away I also had to clean the build folder (CMD + OPT + SHIFT + K) – Tartuffe

Cleaning does not help me at this point, and this across multiple build machines. I'm wondering if I need to rebuild some libraries... – Orphrey

I delete a path in the target Framework search paths then the warming is disappeared. – Sloven

Cleaning the project does remove the warning but i get it again after some time. – Grosso

Answer 2

Don't forget to clean Derived Data!

1. Close Xcode
2. Finder > Go > Go to Folder...
3. ~/Library/Developer/Xcode/DerivedData
4. Select All
5. Move to Trash
6. Re-open Xcode

Basenji