Local build with turtle-cli fails with "Cannot read property 'android' of undefined"

Just getting this set up, so maybe I’m missing something but trying to get Android building on my local machine.

On Mac OSX Mojave. Ran the following to set up:

yarn global add turtle-ci

# Install Java 8
brew tap caskroom/versions
brew cask install java8

# Install gulp CLI
yarn global add gulp-cli

turtle setup:android --sdk-version 30.0.0

And finally:

turtle build:android --username <USERNAME> --password <PASSWORD>

Output was:

Dec 2 06:21:39 turtle[28035] INFO:  Creating keystore
  buildPhase: "generating keystore"
Dec 2 06:21:39 turtle[28035] ERROR: Failed to build standalone app: Cannot read property 'android' of undefined
Dec 2 06:21:39 turtle[28035] ERROR: TypeError: Cannot read property 'android' of undefined
    at Object.getOrCreateCredentials [as default] (/Users/jason/.config/yarn/global/node_modules/turtle-cli/src/builders/utils/android/credentials.ts:22:45)
    at buildAndroid (/Users/jason/.config/yarn/global/node_modules/turtle-cli/src/builders/android.ts:18:29)
    at /Users/jason/.config/yarn/global/node_modules/turtle-cli/src/bin/utils/builder.ts:69:13

Ideas? Don’t really know where to go from here. Thanks.

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The error message isn’t terribly helpful, but I managed to solve by re-reading the instructions several times.

I had to do an initial build via Expo first, which I was trying to avoid. This let me generate a keystore.

expo build:android

Fetched keystore:

expo fetch:android:keystore

Added the following to my environment vars:


Then finally:

turtle build:android --username <USERNAME> --password <PASSWORD> --keystore-path <KEYSTORE.jks> --keystore-alias <ALIAS>

Whew. Maybe that’s useful to someone else.

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