为什么在 supervisor bin/www时  会出现闪屏

    at Object.<anonymous> (D:\musicshow\node_modules\express\lib\express.js:6:13

)

    at Module._compile (module.js:460:26)

    at Object.Module._extensions..js (module.js:478:10)

    at Module.load (module.js:355:32)

    at Function.Module._load (module.js:310:12)

    at Module.require (module.js:365:17)

Program node bin/www exited with code 1

Starting child process with 'node bin/www'

module.js:338

    throw err;

          ^

Error: Cannot find module 'merge-descriptors'

    at Function.Module._resolveFilename (module.js:336:15)

    at Function.Module._load (module.js:278:25)

    at Module.require (module.js:365:17)

    at require (module.js:384:17)

    at Object.<anonymous> (D:\musicshow\node_modules\express\lib\express.js:6:13

)

    at Module._compile (module.js:460:26)

    at Object.Module._extensions..js (module.js:478:10)

    at Module.load (module.js:355:32)

    at Function.Module._load (module.js:310:12)

    at Module.require (module.js:365:17)

Program node bin/www exited with code 1

一直循环重复为什么？