安装 react-native-elements 时出现 NPM 错误答案

【问题标题】：NPM error on installing react-native-elements安装 react-native-elements 时出现 NPM 错误
【发布时间】：2020-07-23 22:56:49
【问题描述】：

我想为我的应用安装react-native-elements，但是在cmd提示符下输入安装命令后，它给出了这个错误：

npm ERR! Unexpected end of JSON input while parsing near '...webpack-loader":"^3.3'

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\DE\AppData\Roaming\npm-cache\_logs\2020-04-11T06_21_21_206Z-debug.log

在2020-04-11T06_21_21_206Z-debug.log

0 info it worked if it ends with ok
1 verbose cli [ 'C:\\Program Files\\nodejs\\node.exe',
1 verbose cli   'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'install',
1 verbose cli   '--save',
1 verbose cli   'react-native-elements' ]
2 info using npm@5.6.0
3 info using node@v8.11.1
4 verbose npm-session 19d809f3b42b5934
5 silly install loadCurrentTree
6 silly install readLocalPackageData
7 http fetch GET 304 https://registry.npmjs.org/react-native-elements 656ms (from cache)
8 silly fetchPackageMetaData error for react-native-elements@latest Unexpected end of JSON input while parsing near '...webpack-loader":"^3.3'
9 verbose stack SyntaxError: Unexpected end of JSON input while parsing near '...webpack-loader":"^3.3'
9 verbose stack     at JSON.parse (<anonymous>)
9 verbose stack     at parseJson (C:\Program Files\nodejs\node_modules\npm\node_modules\pacote\node_modules\make-fetch-happen\node_modules\node-fetch-npm\node_modules\json-parse-better-errors\index.js:7:17)
9 verbose stack     at consumeBody.call.then.buffer (C:\Program Files\nodejs\node_modules\npm\node_modules\pacote\node_modules\make-fetch-happen\node_modules\node-fetch-npm\src\body.js:96:50)
9 verbose stack     at <anonymous>
9 verbose stack     at process._tickCallback (internal/process/next_tick.js:188:7)
10 verbose cwd E:\Project\test
11 verbose Windows_NT 10.0.17134
12 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "--save" "react-native-elements"
13 verbose node v8.11.1
14 verbose npm  v5.6.0
15 error Unexpected end of JSON input while parsing near '...webpack-loader":"^3.3'
16 verbose exit [ 1, true ]

所有其他库都安装成功。只有react-native-elements 给出错误。

【问题讨论】：

标签： node.js react-native npm webpack react-native-elements

【解决方案1】：

首先，试试

npm cache clean --force

然后安装 react-native-elements

npm install react-native-elements

【讨论】：

【解决方案2】：

尝试安装旧版本的 react-native-elements。

我通过安装 3.0.0 版本解决了这个问题，使用 npm install react-native-elements@3.0.0。

通过只执行npm install react-native-elements（没有固定版本），npm 试图安装 react-native-elements 的 3.3.2 版本。

另一种选择是使用--legacy-peer-deps 标志：

npm install --legacy-peer-deps

或

npm install react-native-elements --legacy-peer-deps

【讨论】：