Caused by: java.lang.RuntimeException: Manifest merger failed with multiple errors, see logs

This error occurs when there are conflicting declarations in the AndroidManifest.xml file. The manifest merger tool tries to merge all the manifest files of the project and its dependencies into a single manifest file. If there are conflicting declarations, such as duplicate activities or permissions, the merger tool fails and throws this error.

To fix this error, you need to identify the conflicting declarations in the manifest file and resolve them. Here are some steps you can follow:

1. Check the logcat output for more details about the errors. Look for lines that start with "Error: " or "Manifest merger failed".

2. Open the AndroidManifest.xml file and look for any duplicate declarations. For example, if you have the same activity declared in multiple places, remove the duplicate declaration.

3. If the conflict is with a dependency library, try excluding the problematic module from the build.gradle file of your project. For example, if the conflict is with the Firebase Analytics library, add the following code to the dependencies block in your build.gradle file:

implementation('com.google.firebase:firebase-analytics:17.2.0') {
exclude group: 'com.google.android.gms'
}

4. If none of the above steps work, try cleaning and rebuilding your project. Sometimes, the build process can leave behind cached files that cause conflicts.

By following these steps, you should be able to resolve the Manifest merger failed error and build your Android app successfully.