XCode 9 未知错误-1=fffffffffff：/bin/sh执行失败退出码1求助

Hey there, I know how frustrating this vague, unhelpful error can be when you’re trying to get your app running on a real device. Let’s walk through some targeted fixes that go beyond the standard steps you’ve already tried:

• Dig into the actual script error details
  The default error message is way too generic. Click the small expand arrow next to the /bin/sh failed line in Xcode’s issue navigator—this will reveal the full output from the shell script run. Look for specific red flags like missing files, permission denials, or invalid commands hiding behind that -1 code. This is almost always the fastest way to pinpoint the root cause.

• Audit your Run Script phase setup
  Head to your target’s Build Phases > Run Script and double-check these details:

  • If you’re referencing an external script, confirm its file path is correct—use absolute paths or Xcode variables like $SRCROOT instead of relative paths that might break across environments.
  • Ensure the script has executable permissions. If it’s a local file, run chmod +x /path/to/your/script.sh in Terminal to fix this.
  • Avoid simulator-specific environment variables—some variables that work for simulators won’t populate when building for a physical device.

• Do a deep clean of your build environment
  Beyond deleting Derived Data:

  • Use Cmd + Shift + K to clean the build folder (this is more thorough than a regular clean).
  • Quit Xcode completely, unplug your device, restart both your Mac and the device, then reconnect and try building again. Sometimes a full reset clears up weird cached state that’s causing the issue.

• Check code signing and device trust settings
  Oddly enough, code signing issues can trigger shell script errors indirectly. Verify:

  • Your developer certificate is valid and not expired.
  • The physical device is added to your Apple Developer account and marked as "Trusted" in the device’s Settings > General > Device Management.
  • Your target’s code signing settings match your developer profile (no mismatches between debug/release configurations).

• Test with a minimal script
  If your Run Script has complex logic, temporarily replace it with a simple test command like echo "Testing script execution" and try building. If this works, the problem lies in your original script—gradually add back parts of it until you hit the line that causes the error.

内容的提问来源于stack exchange，提问作者Gina