The ‘Pods-Runner’ target has frameworks with conflicting names: onesignal.xcframework

When you get the error for conflicting names of onesignal.xcframework  then what you need to do is simply replace “OneSignal” with “OneSignalXCFramework” in Podfile.

Then run pod update and the error will go away. Don’t worry about OneSignal everything will continue to work as it was.

Now you areable to run project on simulator.

target 'OneSignalNotificationServiceExtension' do
 use_frameworks!
 pod 'OneSignalXCFramework', '>= 3.0.0', '< 4.0'
end