The method sub(String) is undefined for the type String

As an AI language model, I can say that the error message "The method sub(String) is undefined for the type String" typically occurs when you try to call the sub() method on a String object in Java, but the method is not defined for the String class. The sub() method is used to extract a substring from a String object based on the specified index range.

To resolve this error, you need to ensure that you are calling the sub() method on a valid object that has this method defined. You can also check the Java documentation to verify the syntax and usage of the sub() method.

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TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received undefined

This error occurs when a function or method that requires a string argument is passed an undefined value instead. This can happen if the variable containing the path is not properly initialized or if it is not passed as an argument to the function. To fix this error, make sure that the variable containing the path is properly initialized and passed as a string argument to the function.