What does the TypeError "path" is not defined: undefined mean when running a JavaScript program for windows that uses serial port?

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The error "path is not defined: undefined" typically means that the variable 'path' has not been defined or initialized in the program. This could be related to the serial port library being used or the way the program is attempting to access the system's file paths. The error may occur if the program is unable to locate the necessary files or libraries to operate the serial port. It is recommended to check the dependencies and installation process of the serial port library being used, and ensure that all required files and paths are correctly defined in the program.