Xcode can build a project but can't run it on simulator

Question

When I download a project from the web, sometimes it can be built but doesn\'t run (XCode -> Product -> Run is disabled, in grey). This never happens when I create projects myse

Answer 1

In My Case Sole by Go->Project->Architectures->Architecture=select standard architectures(armv7,arm64)...

same as

Go->Target->Architectures->Architecture=select standard architectures(armv7,arm64)...