Ionic Android Error while merging dex archives — Unable to merge dex in Ionic.

Error: Unable to merge dex in Ionic.

This error usually comes when we use Google’s plugin in Ionic Cordova. (Example: when using Firebase FCM plugin)

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To fix this —

Install couple of androidx plugins to solve the issue. So simply run the following commands in your project root:

1. Add plugin to enable AndroidX in the project

ionic cordova plugin add cordova-plugin-androidx

2. Add plugin to patch existing plugin source that uses the Android Support Library to use AndroidX

ionic cordova plugin add cordova-plugin-androidx-adapter

3. Now run the following commands in your project root:

cordova clean
ionic cordova build android

Forum discussion:
https://forum.ionicframework.com/t/unable-to-merge-dex-in-ionic/119518/72

Hope this helps!

See you later 👋👋

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