iOS simulator issue - LC 9.0.2, Xcode 10.0

[Terry Judd]

I’m running LC 9.0.2 on OSX Mojave and can’t get the simulator to run - it launches OK but LC throws an error part way through the test/build process.

Unable to start simulator: 634,0,0,unknown
C++ exception
573,228,1,revIPhoneSetSimulatorSDK

Any ideas?
Building direct to a phone works fine BTW.

Terry…