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iosjenkinsxctestxcodebuildfastlane

Could not get Simulator application’s pid - Exit status: 70

When using Fastlane to test (Scan tool) an iOS project through Jenkins, I sometimes get the following error: 

xcodebuild: error: Failed to build project X with scheme X.
Reason: Could not get Simulator application’s pid
Exit status: 70
Solution

  • This error occurs when the Mac executing xcodebuild/fastlane commands requires a password to be entered into a keychain tool popup.

    I haven't found a way of dismissing this over SSH so physically attending the box, unlocking the computer and entering the password into the keychain works for me. A restart just after often helps too.