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Common Issues and Resolutions to iOS CI
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iOS-CI.md

iOS-CI Troublshooting and Tricks

Neat Bash Snippits

Retrieve the latest simulator sdk

LATEST_SIMULATOR_SDK=$(xcodebuild -showsdks | grep "Simulator - iOS" | grep -o '\d*\.\d*' | head -n 1)

Change Jenkins from a LaunchDaemon to a LaunchAgent

This will allow Jenkins to run windowed processes like the iOS Simulator. Stop the Jenkins service and move to launch agents:

sudo launchctl unload /Library/LaunchDaemons/org.jenkins-ci.plist
mv /Library/LaunchDaemons/org.jenkins-ci.plist /Library/LaunchAgents/

Remove the following lines from the moved org.jenkins-ci.plist:

<key>SessionCreate</key
<true />

Restart the Jenkins service:

sudo launchctl load /Library/LaunchAgents/org.jenkins-ci.plist

Troubleshooting Checklist

☑️ Ensure the Keychain is unlocked

Without unlocking the keychain CI users like Jenkins will not be able to access the certificates for resigning:

security unlock-keychain -p "$KEYCHAINPASS" /Users/Shared/Jenkins/Library/Keychains/login.keychain

☑️ Make sure the machine has both an iOS Developer and an iOS Distribution certificate

In order to codesign for distribution, both a developer and distribution certificate must be installed in the keychain. Codesign will not warn you of this.

☑️ Try updating Xcode

Sometimes some of the integrated libraries in Xcode can stop builds from working. Update the the latest Xcode to ensure everything is up to date.

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