Build error when running `@bubblewrap/cli build`: ERROR Command failed: ./gradlew assembleRelease --stacktrace

Describe the bug

npx @bubblewrap/cli build
? KeyStore password: ********
? Key password: ********
build Building the Android App...


cli ERROR Command failed: ./gradlew assembleRelease --stacktrace

To Reproduce Steps to reproduce the behavior:

1. init bubblewrap project without an existing keystore :

npx @bubblewrap/cli init --manifest https://bm4-pwa.angular-buch.com/manifest.json
init Fetching Manifest:  https://bm4-pwa.angular-buch.com/manifest.json
? Domain being opened in the TWA: bm4-pwa.angular-buch.com
? Name of the application: BookMonkey 4 PWA
? Name to be shown on the Android Launcher: BookMonkey
? Color to be used for the status bar: #DB2828
? Color to be used for the splash screen background: #FAFAFA
? Relative path to open the TWA: /
? URL to an image that is at least 512x512px: https://bm4-pwa.angular-buch.com/assets/icons/icon-512x512.png
? URL to an image that is at least 512x512px to be used when generating maskable icons undefined
? Include app shortcuts?
[] Yes
? Android Package Name (or Application ID): com.angular_buch.bm4_pwa.twa
? Location of the Signing Key: ./android.keystore
? Key name: android
Saving Config to: ./twa-manifest.json
twa-generator Generating Android Project files:
twa-generator    /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/settings.gradle
twa-generator    /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/gradle.properties
twa-generator    /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/build.gradle
twa-generator    /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/gradlew
twa-generator    /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/gradlew.bat
twa-generator    /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/gradle/wrapper/gradle-wrapper.jar
twa-generator    /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/gradle/wrapper/gradle-wrapper.properties
twa-generator    /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/values/styles.xml
twa-generator    /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/xml/filepaths.xml
twa-generator    /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/xml/shortcuts.xml
twa-generator    /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/build.gradle
twa-generator    /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/AndroidManifest.xml
twa-generator    72x72 Icon: /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/mipmap-hdpi/ic_launcher.png
twa-generator    48x48 Icon: /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/mipmap-mdpi/ic_launcher.png
twa-generator    96x96 Icon: /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/mipmap-xhdpi/ic_launcher.png
twa-generator    144x144 Icon: /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
twa-generator    192x192 Icon: /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
twa-generator    450x450 Icon: /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/drawable-hdpi/splash.png
twa-generator    300x300 Icon: /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/drawable-mdpi/splash.png
twa-generator    600x600 Icon: /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/drawable-xhdpi/splash.png
twa-generator    900x900 Icon: /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/drawable-xxhdpi/splash.png
twa-generator    1200x1200 Icon: /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/app/src/main/res/drawable-xxxhdpi/splash.png
twa-generator    512x512 Icon: /Users/my-user/dev/book-monkey4-pwa-twa-wrapper/store_icon.png
? Signing Key could not be found at "./android.keystore". Do you want to create one now? Yes
? First and Last names (eg: John Doe): John Doe
? Organizational Unit (eg: Engineering Dept): Engineering Dept
? Organization (eg: Company Name): My Company
? Country (2 letter code): DE
? Password for the Key Store: [hidden]
? Password for the Key: [hidden]
keytool Signing Key created successfully
init 
init Project generated successfully. Build it by running "@bubblewrap/cli build"

1. Run the build

npx @bubblewrap/cli build

1. the error message appears after entering the korrekt passwords:

cli ERROR Command failed: ./gradlew assembleRelease --stacktrace

Expected behavior

Screenshots

Desktop (please complete the following information):

• OS: macOS Catalina 10.15.5
• NPM: 6.14.5
• Node.js: v13.12.0
• openjdk version “1.8.0_252”
• OpenJDK Runtime Environment (AdoptOpenJDK)(build 1.8.0_252-b09)
• OpenJDK 64-Bit Server VM (AdoptOpenJDK)(build 25.252-b09, mixed mode)

Additional context When I just proceed running bubblewrap init with all it’s step and I build the signed APK with Android Studio by setting up a new keystore with a new key, the build process for the signed APK works fine.

Are there any stept to debug the problem and to get some more information about the concrete problem that appeared?

[andreban]

This is indeed a different issue. It seems keytool is unable to find the Java runtime. Would you mind filing a another issue for this?

[d-koppenhagen]

Awesome, with this change it works. Yes I think the problematic part in the docs is:

The OpenJDK path should contain bin,com,include …

This should be changed I think