React'create-react-app'我的应用给出错误

Question

日志文件给我这个错误：

199 silly saveTree | `-- workbox-webpack-plugin@4.3.1
199 silly saveTree `-- react@16.9.0
200 verbose stack SyntaxError: Unexpected end of JSON input while parsing near '....0","dependencies":{"'
200 verbose stack     at JSON.parse (<anonymous>)
200 verbose stack     at parseJson (C:\Program Files\nodejs\node_modules\npm\node_modules\json-parse-better-errors\index.js:7:17)
200 verbose stack     at consumeBody.call.then.buffer (C:\Program Files\nodejs\node_modules\npm\node_modules\node-fetch-npm\src\body.js:96:50)
200 verbose stack     at process._tickCallback (internal/process/next_tick.js:68:7)
201 verbose cwd C:\Users\vinochau\Documents\work\React_Practice\VehicleManagementSystem\my-app
202 verbose Windows_NT 10.0.17134
203 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "--save" "--save-exact" "--loglevel" "error" "react" "react-dom" "react-scripts"
204 verbose node v10.16.0
205 verbose npm  v6.9.0
206 error Unexpected end of JSON input while parsing near '....0","dependencies":{"'
207 verbose exit [ 1, true ]

我尝试过npm clean cache --force，然后重新安装create-react-app

安装软件包。这可能需要几分钟。 正在安装react，react-dom和react-script ...

npm ERR! Unexpected end of JSON input while parsing near '....0","dependencies":{"'

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\vinochau\AppData\Roaming\npm-cache\_logs\2019-09-12T13_35_37_827Z-debug.log

中止安装。   npm install --save --save-exact --loglevel错误react react-dom react-scripts失败。

正在删除生成的文件... package.json 从

删除my-app /

C:\Users\vinochau\Documents\work\React_Practice\VehicleManagementSystem

完成。