Q:Uncaught ReferenceError: CC_PHYSICS_BUILTIN is not defined
A:先clean build folder....,然后重新build
Q:xcode 使用模拟器预览 报错 In /Library/Developer/Xcode/DerivedData/hello_world-djnvsdcqyfoqvdepilidvunfunto/Build/Products/Debug-iphonesimulator/libcocos2d iOS.a(ftsystem.o), building for iOS Simulator, but linking in object file built for iOS, file '/Users/leiming/Library/Developer/Xcode/DerivedData/hello_world-djnvsdcqyfoqvdepilidvunfunto/Build/Products/Debug-iphonesimulator/libcocos2d iOS.a' for architecture arm64
A:解决办法,排除 ios 模拟器使用arm64的cpu
再次run 成功