git上下载的项目，npm start报错

‘json-server’ �����ڲ����ⲿ���Ҳ���ǿ����еij���
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[1] npm ERR! code ELIFECYCLE
[1] npm ERR! errno 1
[1] npm ERR! taskmgr@0.0.1 api: json-server --watch mock/data.json --port 3002
[1] npm ERR! Exit status 1
[1] npm ERR!
[1] npm ERR! Failed at the taskmgr@0.0.1 api script.
[1] npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
[1]
[1] npm ERR! A complete log of this run can be found in:
[1] npm ERR! C:\Users\jiangge\AppData\Roaming\npm-cache_logs\2018-09-14T07_26_43_843Z-debug.log
[1] npm run api exited with