react-native 链接 react-native-image-picker 抛出“(assets || []).map is not a function”错误答案

【问题标题】：react-native link react-native-image-picker throws "(assets || []).map is not a function" errorreact-native 链接 react-native-image-picker 抛出“(assets || []).map is not a function”错误
【发布时间】：2019-04-25 03:10:48
【问题描述】：

当我尝试将 react-native-image-picker 添加到我的项目时，我遇到了以下问题。

$ npm install react-native-image-picker --save 
npm WARN @babel/plugin-check-constants@7.0.0-beta.38 requires a peer of @babel/core@7.0.0-beta.38 but none is installed. You must install peer dependencies yourself.
npm WARN aws-amplify-react-native@0.2.19 requires a peer of graphql@0.13.0 but none is installed. You must install peer dependencies yourself.
npm WARN react-native-document-scanner@1.4.2 requires a peer of react-native@0.49.3 but none is installed. You must install peer dependencies yourself.
npm WARN react-number-format@4.0.6 requires a peer of react-dom@^0.14 || ^15.0.0-rc || ^15.0.0 || ^16.0.0-rc || ^16.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-darwin-ia32@2.2.8 (node_modules/@expo/ngrok-bin-darwin-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-darwin-ia32@2.2.8: wanted {"os":"darwin","arch":"ia32"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-freebsd-ia32@2.2.8 (node_modules/@expo/ngrok-bin-freebsd-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-freebsd-ia32@2.2.8: wanted {"os":"freebsd","arch":"ia32"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-freebsd-x64@2.2.8 (node_modules/@expo/ngrok-bin-freebsd-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-freebsd-x64@2.2.8: wanted {"os":"freebsd","arch":"x64"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-linux-arm@2.2.8 (node_modules/@expo/ngrok-bin-linux-arm):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-linux-arm@2.2.8: wanted {"os":"linux","arch":"arm"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-linux-arm64@2.2.8 (node_modules/@expo/ngrok-bin-linux-arm64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-linux-arm64@2.2.8: wanted {"os":"linux","arch":"arm64"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-linux-ia32@2.2.8 (node_modules/@expo/ngrok-bin-linux-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-linux-ia32@2.2.8: wanted {"os":"linux","arch":"ia32"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-linux-x64@2.2.8 (node_modules/@expo/ngrok-bin-linux-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-linux-x64@2.2.8: wanted {"os":"linux","arch":"x64"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-sunos-x64@2.2.8 (node_modules/@expo/ngrok-bin-sunos-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-sunos-x64@2.2.8: wanted {"os":"sunos","arch":"x64"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-win32-ia32@2.2.8-beta.1 (node_modules/@expo/ngrok-bin-win32-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-win32-ia32@2.2.8-beta.1: wanted {"os":"win32","arch":"ia32"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-win32-x64@2.2.8-beta.1 (node_modules/@expo/ngrok-bin-win32-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-win32-x64@2.2.8-beta.1: wanted {"os":"win32","arch":"x64"} (current: {"os":"darwin","arch":"x64"})

+ react-native-image-picker@0.28.1
added 1 package from 4 contributors in 12.728s

当我尝试链接时，我收到以下错误

react-native link react-native-image-picker 
Scanning folders for symlinks in /opt/app/dev/prescribedjobs/node_modules (22ms)
rnpm-install ERR! ERRPACKAGEJSON No package found. Are you sure this is a React Native project?

(assets || []).map is not a function

【问题讨论】：

再次运行 npm install。有时依赖项没有正确安装。如果它不起作用，则删除节点模块和 package-lock.json，然后运行 npm install 和你的包。

标签： react-native react-native-image-picker react-native-linking

【解决方案1】：

我将使用手动安装说明安装软件包，而不是 react-native 链接：https://github.com/react-native-community/react-native-image-picker/blob/master/docs/Install.md

【讨论】：