error Failed to build iOS project. We ran “xcodebuild” command but it exited with error code 65

Question

I\'ve build a react-native application and suddenly I get this error message on my terminal during run of the command react-native run-ios. The same code work fine 10 minute

Answer 1

SOLVED: Always be sure to update your Xcode folks!

Protip: And don't do it from the apple store (but always do it from an official apple website of course)

tip from: http://ericasadun.com/2016/03/22/xcode-upgrades-lessons-learned/

official apple download page: https://developer.apple.com/download/more/

For those who are unable to resolve with above method

1. Go to project settings in Xcode. Menu File->Project Settings

2. Go to per-User Project Settings section.

3. Click on advanced.

4. Select Xcode Default option. previously this used to be Legacy for my project.

I have analysed on similar lines and concluded that clean is causing the archive to fail. So, the new build system is not clearing the custom/legacy build directory.

delete the build/ folder in ios/ and rerun if that doesn't do any change then
File -> Project Settings (or WorkSpace Settings) -> Build System -> Legacy Build System
Rerun and voilà!

If it still Fails you need to clean full project

Do the following:

• Delete ios dir manually
• Clean cache Run npm cache clean --force
• Run react-native eject
• Re-install all packages npm install
• Run the link command react-native link
• Finally run react-native run-ios