全局安装老师的webpack会报错是怎么回事呀？

npm ERR! Unexpected end of JSON input while parsing near '...VHeZTP1TUIl/dNAQ==","'

npm ERR! A complete log of this run can be found in:

npm ERR!     C:\Users\user101\AppData\Roaming\npm-cache\_logs\2019-08-12T02_29_32_485Z-debug.log