npm install出错，npm ERR! code EINTEGRITY npm ERR! Verification failed while extracting url-parse@1.4.3

npm install时出现以下错误：

npm ERR! code EINTEGRITY
npm ERR! Verification failed while extracting url-parse@1.4.3:
npm ERR! Verification failed while extracting url-parse@1.4.3:
npm ERR! sha512-x95Td74QcvICAA0+qERaVkRpTGKyBHHYdwL2LXZm5t/gBtCB9KQSO/0zQgSTYEV1p0WcvSg79TLNPSvd5IDJMQ== integrity checksum failed when using sha512: wanted sha512-x95Td74QcvICAA0+qERaVkRpTGKyBHHYdwL2LXZm5t/gBtCB9KQSO/0zQgSTYEV1p0WcvSg79TLNPSvd5IDJMQ== but got sha512-rh+KuAW36YKo0vClhQzLLveoj8FwPJNu65xLb7Mrt+eZht0IPT0IXgSv8gcMegZ6NvjJUALf6Mf25POlMwD1Fw==. (13865 bytes)

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Administrator\AppData\Roaming\npm-cache\_logs\2018-09-15T10_18_02_420Z-debug.log

折腾许久，网上找了好多办法，有说npm版本太高了，要升级到最新的，有说因为更新包时一会用npm一会用cnpm导致的，其实我一直都只用npm，并且不管是清缓存还是升级npm后，都会把旧版本下载的文件目录都清空的。

清缓存：npm cache verify

运行：npm install -g npm

再运行：npm install -g vue-cli

还是一样不行，最后，把npm版本降为4.X后，再试，竟然可以了…..

npm -g install npm@4

npm cache verify

npm install

搞定~