Error: Cannot find module 'C:\WINDOWS\system32\mainApp.js'
at Function.Module._resolveFilename (module.js:440:15)
at Function.Module._load (module.js:388:25)
at Function.Module.runMain (module.js:575:10)
at startup (node.js:160:18)
at node.js:449:3
请按任意键继续. . .