Expo DevTools TypeError: Cannot read property 'compile' of undefined

Question

I cannot get the Expo DevTools to work. My approach:

npm install -g expo-cli
expo init
cd PROJECTNAME
expo start

I just get this error message in the console:

TypeError: Cannot read property 'compile' of undefined

And this one in the DevTools in the browser:

Expo Developer Tools is disconnected from Expo CLI. Use the expo start command to start the CLI again.

Does anyone know what Iam missing here?

Answer 1

This issue has now been solved. They just published [email protected] and uninstalling and reinstalling makes it work:

npm uninstall -g expo-cli && npm i -g expo-cli

The issue was with a dependency of expo-cli 'joi' that was updated and broke stuff.

For more info: https://github.com/expo/expo-cli/issues/213

Answer 2

You aren't missing anything here - there appears to be a problem with this version of expo-cli.

The github thread shared in the comments has more information and a possible workaround. https://github.com/expo/expo-cli/issues/213

If the workaround doesn't work for you, I would suggest using react-native-cli or simply waiting a day or two until the expo team fix this issue.