The run destination iPhone 5.0 Simulator is not valid for running the scheme 'MyApp'

what are your options set to for in the proejct options? you need to tell it is uses ios5 as the deployment 

在设置选项中把debug，和release的sdi都设置成iso5，就不会报错了

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原文地址：https://www.cnblogs.com/mfryf/p/2368220.html