Fastlane plugin for wait_xcrun action
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wait_xcrun plugin

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Getting Started

This project is a fastlane plugin. To get started with fastlane-plugin-wait_xcrun, add it to your project by running:

fastlane add_plugin wait_xcrun

About wait_xcrun

Wait for Xcode toolchain to come back online after switching Xcode versions.

In particular, the plugin is designed to help with issues like this:

This kind of issue often happens on CI servers, for example when previous build was using Xcode 7.3.1 and next build is using Xcode 8. Switching Xcode version can cause Xcode toolchain commands to fail.


Check out the example Fastfile to see how to use this plugin. Try it by cloning the repo, running fastlane install_plugins and bundle exec fastlane test.

The recommended way is to call wait_xcrun in before_all hook, but after the DEVELOPER_DIR environment variable has been set.

before_all do
  # Make sure proper Xcode version is selected by CI server
  # or by setting DEVELOPER_DIR environment variable


Run tests for this plugin

To run both the tests, and code style validation, run


To automatically fix many of the styling issues, use

rubocop -a

To see the real issue "in action", make sure you have both Xcode 8 and Xcode 7.3.1 installed in /Applications. Specify the name of Xcode 8 and Xcode 7.3.1 apps without the .app extension using prev_xcode and next_xcode options and run switch_xcode_test lane.

# In this example Xcode 8 is installed to /Applications/
# Xcode 7.3.1 is installed to /Applications/
bundle exec fastlane switch_xcode_test prev_xcode:Xcode next_xcode:Xcode7.3.1

Issues and Feedback

For any other issues and feedback about this plugin, please submit it to this repository.


If you have trouble using plugins, check out the Plugins Troubleshooting doc in the main fastlane repo.

Using fastlane Plugins

For more information about how the fastlane plugin system works, check out the Plugins documentation.

About fastlane

fastlane is the easiest way to automate building and releasing your iOS and Android apps. To learn more, check out