ld: framework not found FBLPromises

Hello everyone

I keep getting this error everytime I Build and run to a Simulator, running on a device works fine though.

Code Block 
ld: framework not found FBLPromises
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Xcode 12.0.1 running iOS 14
Using Cocoapods to integrate Ad networks
Deployment target 10.0

Any help would be greatly appreciated.
Thanks

Abs