Cannot resolve symbol 'System'

If you are encountering the "Cannot resolve symbol 'System'" error, it usually means that the System class from the Java standard library is not being recognized by your code. This can happen if you forget to import the necessary packages or if there is an issue with your project setup.

To resolve this issue, you can try the following steps:

1. Check your import statements: Make sure you have the following line at the top of your code file:

   import java.lang.System;

2. Make sure you have a valid JDK (Java Development Kit) installed on your system: The JDK includes the necessary libraries, including the System class. Ensure that your JDK installation is properly configured and accessible to your development environment.

3. Clean and rebuild your project: Sometimes, build errors can cause issues with symbol resolution. Try cleaning and rebuilding your project to see if it resolves the problem.

4. Verify your project setup: Ensure that your project is correctly set up in your IDE or build tool. Make sure that the JDK version configured for the project matches the one you have installed.

If none of these solutions work, please provide more information about your project setup, such as the IDE or build tool you are using and any relevant code snippets, so that I can assist you further.