iOS framework UnitTest：Failed to load test bundle

Use Xcode10.1，I added a Unit Tests to an framework project，But when lanch Unit Tests with Host App，It’t crashed with the following log

Failed to load test bundle from file...no suitable image found......

Fiexd：

you need make sure iOS Deployment target of the Host App and Unit Tests target are the same.

make sure mach-o type of the Unit Tests target is Bundle.