React Native Build Commands Failed: PhaseScriptExecution … (domain=NSPOSIXErrorDomain, code=2)

Question

Environment

Mac OS X Version 10.11.3 (15D21)
Xcode Version 7.2 (7C68)
Simulator Version 9.2 (SimulatorApp-643)
react-native-cli 0.1.10
node v5.5         


        

Answer 1

Open Your Xcode project

Run it

You should have 2 errors from RCTSRWebSocket.m

add (void) to the beginning of both line :

SecRandomCopyBytes(kSecRandomDefault, sizeof(uint32_t), (uint8_t *)mask_key);

become

(void)SecRandomCopyBytes(kSecRandomDefault, sizeof(uint32_t), (uint8_t *)mask_key);

Save and Re-run your project with Xcode or terminal. It should work for sure. I have tested all the solution before, this one is the only who worked for me.