No parser and no filepath given, using "babylon" the parser now but this will throw an error in the future. Please specify a parser or a filepath so one can be inferred.

without prompting before, suddenly one day I began to prompt that I didn"t operate or upgrade anything related to node npm nuxt

PS: by the way, how to modify the port number in nuxt version 1.4? according to the official statement, it is impossible to modify host in adding config in package.json and dev in scripts will report an error as soon as it runs.