Build failed

[AnanthAkshay]

PS C:\Mobile_App_Dev\Travel-app-flutter> flutter build apk

FAILURE: Build failed with an exception.

• Where:
  Build file 'C:\Mobile_App_Dev\Travel-app-flutter\android\build.gradle' line: 5

• What went wrong:
  Error resolving plugin [id: 'com.google.gms.google-services', version: '4.4.3', apply: false]

The request for this plugin could not be satisfied because the plugin is already on the classpath with a different version (4.3.15).

• Try:

Run with --stacktrace option to get the stack trace.
Run with --info or --debug option to get more log output.
Run with --scan to get full insights.

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

BUILD FAILED in 1s
Running Gradle task 'assembleRelease'... 2,771ms
Gradle task assembleRelease failed with exit code 1
PS C:\Mobile_App_Dev\Travel-app-flutter>

[Chamalka20]

This error means you have two different versions of the com.google.gms.google-services plugin in your Gradle files

1. 4.3.15 (already in the classpath)
2. 4.4.3 (explicitly added somewhere in your android/build.gradle or android/app/build.gradle)

Gradle doesn’t allow two versions of the same plugin.