cannot resolve symbol

"Cannot resolve symbol" is an error message that indicates that the compiler or IDE cannot find a reference to a particular symbol or identifier in the code. This error usually occurs when the symbol is misspelled, is not declared or imported properly, or is located in a different package or module.

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

1. Check for spelling errors: Make sure that the symbol is spelled correctly and consistently throughout the code.

2. Import the necessary packages: If the symbol is defined in another package or module, make sure that you have imported the necessary packages or modules.

3. Declare the symbol: If the symbol is a variable, method, or class, make sure that it is declared properly in the code.

4. Check the scope of the symbol: If the symbol is defined in another class or method, make sure that it is accessible from the current code block.

5. Clean and rebuild the project: Sometimes, the error can be caused by a cached version of the code. Try cleaning and rebuilding the project to refresh the code.

If none of these steps work, try searching online for the specific error message and see if others have encountered a similar issue.