npm ERR! Unexpected end of JSON input while parsing near '.../openpgpjs.org\r\n\r\'
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\10956\AppData\Roaming\npm-cache\_logs\2019-03-17T08_27_13_328Z-debug.log
解决办法：npm cache clean --force
