我无法在ionic 5中创建新项目

Question

am试图用ionic 5创建一个新项目，但是当我在终端上运行ionic start client blank时出现此错误

 npm.cmd i
npm ERR! Unexpected end of JSON input while parsing near '...latest","jake":"lates'

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\De Stone Of David\AppData\Roaming\npm-cache\_logs\2019-07-03T00_18_32_357Z-debug.log
[ERROR] An error occurred while running subprocess npm.

        npm.cmd i exited with exit code 1.

        Re-running this command with the --verbose flag may provide more information.

我的离子版本是5.2.1

请问是什么导致了此错误，如何消除它，谢谢