Run and debug annotations are not visible.

Description: 

This error occurs when TestNG annotations are not properly set up or implemented in your Selenium automation code. It can also occur if your test methods return a boolean value instead of void, which is not supported by TestNG.

Debugs:

Debug 1 Check your TestNG annotations: 

Make sure you have properly annotated your test methods with the @Test annotation. Also, ensure that you have set up the TestNG configuration file correctly and that it includes the appropriate classes and methods.

Debug 2 Check your test method return type: 

Ensure that your test methods have a return type of void and not boolean. If they return a boolean value, TestNG will not recognize them as test methods and they will not be executed.

Debug 3 Check your parameter passing: 

Make sure that you are not passing any parameters inside of your test methods. TestNG does not support parameterized tests with @Test annotations.

Extra Information: 
It is important to remember that TestNG is a testing framework for Java and not a testing tool itself. It provides annotations that help in organizing and executing test cases. Also, keep in mind that TestNG provides many other useful annotations such as @BeforeTest and @AfterTest that can help with test setup and teardown.

Example Code Snippet:

// Incorrect test method with boolean return type

@Test

public boolean testMethod() {

// Test code here

return true;

}

// Correct test method with void return type

@Test

public void testMethod() {
// Test code here

}