Android Ionic Pro Build Fails after successful compile

Appflow
1 

FAILURE: Build failed with an exception.

* What went wrong:
Failed to capture snapshot of input files for task 'mergeReleaseAssets' property 'sourceFolderInputs' during up-to-date check.
> Failed to create MD5 hash for file '/usr/src/app/platforms/android/assets/www/assets/i18n/??????????.json'.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

* Get more help at https://help.gradle.org

BUILD FAILED in 2m 29s
27 actionable tasks: 27 executed
(node:1) UnhandledPromiseRejectionWarning: Error: /usr/src/app/platforms/android/gradlew: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.

* What went wrong:
Failed to capture snapshot of input files for task 'mergeReleaseAssets' property 'sourceFolderInputs' during up-to-date check.
> Failed to create MD5 hash for file '/usr/src/app/platforms/android/assets/www/assets/i18n/??????????.json'.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

* Get more help at https://help.gradle.org

BUILD FAILED in 2m 29s
    at ChildProcess.whenDone (/usr/src/app/platforms/android/cordova/node_modules/cordova-common/src/superspawn.js:169:23)
    at emitTwo (events.js:126:13)
    at ChildProcess.emit (events.js:214:7)
    at maybeClose (internal/child_process.js:925:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:209:5)
(node:1) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:1) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
$ cordova build android --release -- --keystore=android.keystore --storePassword=***** --alias=oogawallet --password=***** success
Running after script...
$ run "clean-up"
Running Stage clean-up for Job: 6060576
 Build failed
2

What is this file? Filename looks broken.

3

The file is in Arabic. I suppose it’s not supported in the build process?

4

I should state, the build does work for iOS!