Could not find module for target 'x86_64-apple-ios-simulator'

I have my custom framework and it works properly in XCode 10. I rebuild it in XCode 11 beta 3, then integrated into the app, and get the following error:

Could not find module 'MyCustomFramework' for target 'x86_64-apple-ios-simulator'; found: arm64, arm64-apple-ios

Are there some changes I have to make in "valid architectures" in the framework project?

Updated: I can't pick any answer as a correct one as the framework in my case was really tiny (one class, a few methods) and almost not in use, so I decided to get rid of it and move these a few methods into main project.


  • To solve this issue I had to create a fat library of my custom framework again using xcode 11 tools.

    To do that I did the following:

    1) Build YourCustomFramework target for iOS simulator and extract framework from products folder on your desktop.

    Xcode⁩ ▸ ⁨DerivedData⁩ ▸ ⁨Your Project ▸ ⁨Build⁩ ▸ ⁨Products⁩ ▸ ⁨Release-iphonesimulator

    2) Build YourCustomFramework target for Generic iOS Device and extract framework from products folder on your desktop.

    Xcode⁩ ▸ ⁨DerivedData⁩ ▸ ⁨Your Project ▸ ⁨Build⁩ ▸ ⁨Products⁩ ▸ ⁨Release-iphoneos⁩

    3) Rename the simulator generated framework to YourCustomFramework-sim.framework so that it is distinguishable later.

    4) Use the lipo command to combine both binaries into a single fat binary file. (cd to your desktop or wherever your custom framework file is located)

    $lipo -create ./YourCustomFramework-sim.framework/YourCustomFramework ./YourCustomFramework.framework/YourCustomFramework -output ./YourCustomFramework

    5) Copy YourCustomFramework binary file created in above step and replace it with the binary in YourCustomFramework.framework folder.

    6) From folder


    copy all of the modules and paste them to


    This should solve your issue.