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

[ItsIgnacioPortal]

I try to run unmap with arguments like these but I always get an error:

unmap --output "C:\Users\User\Downloads\outputfolder" "file.js.map"

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

[bayuah]

@ItsIgnacioPortal, that is because sourceRoot is empty. The fast way, without editing code, is add "--sourceRoot" parameter, such as:

unmap --output "C:\Users\User\Downloads\outputfolder" --sourceRoot="root" "file.js.map"

Sure way to fix it, is to edit "index.js" and add one line if(typeof sourceRoot !== 'string')sourceRoot = ''; to dumpSource function, before path.join.