错误：jest-haste-map：@providesModule在使用本地依赖项时命名冲突

Question

我在package.json中使用了一个本地模块，它也有react-native作为依赖项。

在我的APP package.json：

"react": "16.4.1",
"react-native": "0.56.0",
"react-native-services": "file:///Users/R01/Projects/react-native-services"

在我的react-native-services package.json：

"react": "16.4.1",
"react-native": "0.56.0"

所以当运行react-native run-android时，Metro Bundler抛出：

Looking for JS files in
   /Users/R01/Projects/RNApp
   /Users/R01/Projects/react-native-services 


Metro Bundler ready.

Loading dependency graph...(node:72824) UnhandledPromiseRejectionWarning: Error: jest-haste-map: @providesModule naming collision:
  Duplicate module name: Sample
  Paths: /Users/R01/Projects/react-native-services/node_modules/react-native/Libraries/Sample/package.json collides with /Users/R01/Projects/RNApp/node_modules/react-native/Libraries/Sample/package.json

 This error is caused by a @providesModule declaration with the same name across two different files.
    at setModule (/Users/R01/Projects/RNApp/node_modules/jest-haste-map/build/index.js:446:17)
    at workerReply (/Users/R01/Projects/RNApp/node_modules/jest-haste-map/build/index.js:496:9)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:182:7)
(node:72824) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)
(node:72824) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
error: bundling failed: Error: jest-haste-map: @providesModule naming collision:
  Duplicate module name: Sample
  Paths: /Users/R01/Projects/react-native-services/node_modules/react-native/Libraries/Sample/package.json collides with /Users/R01/Projects/RNApp/node_modules/react-native/Libraries/Sample/package.json

This error is caused by a @providesModule declaration with the same name across two different files.
    at setModule (/Users/R01/Projects/RNApp/node_modules/jest-haste-map/build/index.js:446:17)
    at workerReply (/Users/R01/Projects/RNApp/node_modules/jest-haste-map/build/index.js:496:9)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:182:7)

我已经尝试过：

• 随着npm和yarn（升级）安装，但react-native run-android总是抛出相同的错误。
• watchman watch-del-all rm -rf node_modules && npm install rm -fr $ TMPDIR / react- * npm cache clean npm start - --reset-cache

Answer 1

watchman watch-del-all

rm -rf node_modules && npm install

rm -fr $TMPDIR/react-*
npm cache clean
npm start -- --reset-cache

for more check out here

Answer 2

面对同样的问题解决了!!

项目中的所有npm包都有节点模块。确保包中的node_modules目录不应包含已存在的节点模块。

在我的例子中，react-native存在于我的项目的node_modules以及另一个分叉库的node_modules中。

由于库是分叉的，我可以从中删除node_modules目录，问题得到解决。

Answer 3

我回应自己。

作为一个临时的解决方案，并且考虑到依赖于peerDependencies也没有用，我把react和react-native放在devDependencies包的react-native-services中。

Answer 4

我也得到了同样的错误。我尝试了下面的步骤，它的工作就像一个迷人的。

请从“％appdata％\ Temp”中删除所有react-native特定文件夹，然后尝试以下命令：

rimraf node_modules
npm cache clean --force
npm install
rm -rf ios/build

将/Users/Jebasuthan/XcodeProject/Game/ios/Pods/React/package.json改为别的东西

非递归的