The error message you mentioned typically occurs in Android projects when the Google Services plugin is not properly configured or included in the project's build files.
To resolve this issue, you can try the following steps:
1. Make sure you have the latest version of the Google Services plugin. You can check for updates in the official documentation or the plugin's repository.
2. Verify that you have added the Google Services plugin to your project's dependencies. In the project-level `build.gradle` file, make sure you have the following line of code:
classpath 'com.google.gms:google-services:4.3.10'
3. Ensure that you have applied the plugin in the app-level `build.gradle` file. Add the following line at the bottom of the file:
apply plugin: 'com.google.gms.google-services'
4. Sync your project with Gradle files to ensure the changes take effect. You can do this by clicking the "Sync Now" button or running the Gradle sync task.
If you're encountering this issue after my knowledge cutoff, I recommend checking the official documentation or community forums for the specific plugin or library you're working with. Additionally, searching for recent discussions or updates related to the error message might provide you with more up-to-date information and solutions.