What is the reason for the Maven pom file showing red and how can it be resolved?

If a Maven POM file shows in red, it is usually because there is a dependency that cannot be resolved or a configuration error. The solution is as follows:

1. Check if the dependencies are correct: First, examine the dependencies in the pom file to make sure the groupId, artifactId, version, and other information are correct, ensuring that the dependencies can be resolved properly.
2. Check the plugin configuration: If the plugin shows a red error, verify if the plugin’s configuration is correct, including checking the groupId, artifactId, and version information.
3. Check your Maven repository: If dependencies cannot be resolved, it may be because the corresponding dependencies are not in the Maven repository. You can try cleaning the Maven repository and updating the dependencies again.
4. Check the network connection: Sometimes an unstable network connection or incorrect proxy settings can prevent dependencies from being downloaded, you can verify if the network connection and proxy settings are correct.
5. Clean project cache: Occasionally, temporary files in the project cache may cause errors, so you can try clearing the project’s target directory and .m2 directory.

If after checking and adjusting according to the above methods the issue still cannot be resolved, it may be necessary to further examine the error messages in detail and try other solutions.