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

For me, I needed to upgrade my version of XCode from Yosemite to Sierra.

This can be done via App Store > Updates.

Answer 2

For me port 8081 was in use :

lsof -n -i4TCP:8081

Answer 3

1. Open your react-native project in Xcode
2. Create a new schema with project name.
3. the problem will be solved

Answer 4

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.

Answer 5

Surprisingly, this was the solution for me: Open the file Views/RTCScrollView.m in Xcode and change the variable _refreshControl to refreshControl. All occurrences of _refreshControl were already marked as errors. The new code becomes:

- (void)setRefreshControl:(RCTRefreshControl *)refreshControl
{
  if (refreshControl) {
    [refreshControl removeFromSuperview];
  }
  refreshControl = refreshControl;
  [self addSubview:refreshControl];
}

Answer 6

For me I just needed to edit the iOS project build settings

Product Bundle Identifier was not set

You need to set it for both the Project and 2 Targets