Xcode 10.2.1 Command PhaseScriptExecution failed with a nonzero exit code

Question

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Answer 1

Probably you should do as follow:

• Remove .xcworkspace and Pod folder
• Run pod install
• Delete derived data
• Clean all project (press alt before click on click)

I tried above things and it worked for me.

Answer 2

In my case was that I changed a line in a script of my Xcode project and that line was badly written (I forgot to add ";" at the end of the line). So I added the ";" and clean and build project.

Answer 3

Restart worked for me... Mac OS restart, not xCode restart...

Answer 4

I was facing this issue because of Firebase Crashlytics. In Targets -> Build Phases -> Run Script

I had Firebase Crashlytics written like

${PODS_ROOT}/FirebaseCrashlytics/run

I changed that and put it in double quotes

"${PODS_ROOT}/FirebaseCrashlytics/run"

Answer 5

For me, the issue was with the node version that xcode was using. My project was building fine in Expo but not in Xcode after ejecting. I found my answer here: https://github.com/expo/expo/issues/8488

• check you have the latest version of node

  $ node --version

• delete the version in /usr/local/bin/

  $ rm /usr/local/bin/node

• re add a sym link

  $ ln -s $(which node) /usr/local/bin/node

Answer 6

I had the same problem in Xcode 11.5 after revoking a certificate through Apple's developer homepage and adding it again (even though it looked different afterwards):

Every time I tried to archive my app, it would fail at the very end (not the pods but my actual app) with the same PhaseScriptExecution failed with a nonzero exit code error message. There is/was a valid team with an "Apple Development" signing certificate in "Signing & Capabilities" (project file in Xcode) and locking & unlocking the keychain, cleaning & building the project, restarting,... didn't work.

The problem was caused by having two active certificates of the same type that I must have added on accident, in addition to the renewed one. I deleted both the renewed one and the duplicate and it worked again.

You can find your certificates here or find the page like this:

• https://developer.apple.com/
• "Account" (at the top)
• Log in
• "Certificates, IDs & Profiles" (on the left)

Also check that there aren't any duplicates in your keychain! Be careful though - don't delete or add anything unless you know what you're doing, otherwise you might create a huge mess!