ios - why do i can't launch the simulator? error:"Could not find simulator for com.apple.platform.iphonesimulator" -

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the error message "could not find simulator com.apple.platform.iphonesimulator"
have upgrade macos 10.12 , , i'm using xcode 7.1 beta . have load ios 8.2 simulator

after upgraded xcode newest 8.1, thing works well! guess it's question of old xcode 7.1 beta.


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