エラー内容

React native(Expo)で以下のエラーが発生．

Invariant Violation: Tried to register two views with the same name RNCSafeAreaProvider
- node_modules/react-native/Libraries/LogBox/LogBox.js:148:8 in registerError
- node_modules/react-native/Libraries/LogBox/LogBox.js:59:8 in errorImpl
- node_modules/react-native/Libraries/LogBox/LogBox.js:33:4 in console.error
- node_modules/expo/build/environment/react-native-logs.fx.js:27:4 in error
- node_modules/react-native/Libraries/Core/ExceptionsManager.js:104:6 in reportException
- node_modules/react-native/Libraries/Core/ExceptionsManager.js:171:19 in handleException
- node_modules/react-native/Libraries/Core/setUpErrorHandling.js:24:6 in handleError
- node_modules/expo-error-recovery/build/ErrorRecovery.fx.js:9:32 in ErrorUtils.setGlobalHandler$argument_0
- node_modules/regenerator-runtime/runtime.js:63:36 in tryCatch
- node_modules/regenerator-runtime/runtime.js:293:29 in invoke
- node_modules/regenerator-runtime/runtime.js:63:36 in tryCatch
- node_modules/regenerator-runtime/runtime.js:154:27 in invoke
- node_modules/regenerator-runtime/runtime.js:164:18 in PromiseImpl.resolve.then$argument_0
- node_modules/react-native/node_modules/promise/setimmediate/core.js:37:13 in tryCallOne
- node_modules/react-native/node_modules/promise/setimmediate/core.js:123:24 in setImmediate$argument_0
- node_modules/react-native/Libraries/Core/Timers/JSTimers.js:130:14 in _callTimer
- node_modules/react-native/Libraries/Core/Timers/JSTimers.js:181:14 in _callImmediatesPass
- node_modules/react-native/Libraries/Core/Timers/JSTimers.js:441:30 in callImmediates
- node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:387:6 in __callImmediates
- node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:135:6 in __guard$argument_0
- node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:364:10 in __guard
- node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:134:4 in flushedQueue
* [native code]:null in flushedQueue
* [native code]:null in invokeCallbackAndReturnFlushedQueueInvariant Violation: Tried to register two views with the same name RNCSafeAreaProvider
- node_modules/react-native/Libraries/LogBox/LogBox.js:148:8 in registerError
- node_modules/react-native/Libraries/LogBox/LogBox.js:59:8 in errorImpl
- node_modules/react-native/Libraries/LogBox/LogBox.js:33:4 in console.error
- node_modules/expo/build/environment/react-native-logs.fx.js:27:4 in error
- node_modules/react-native/Libraries/Core/ExceptionsManager.js:104:6 in reportException
- node_modules/react-native/Libraries/Core/ExceptionsManager.js:171:19 in handleException
- node_modules/react-native/Libraries/Core/setUpErrorHandling.js:24:6 in handleError
- node_modules/expo-error-recovery/build/ErrorRecovery.fx.js:9:32 in ErrorUtils.setGlobalHandler$argument_0
- node_modules/regenerator-runtime/runtime.js:63:36 in tryCatch
- node_modules/regenerator-runtime/runtime.js:293:29 in invoke
- node_modules/regenerator-runtime/runtime.js:63:36 in tryCatch
- node_modules/regenerator-runtime/runtime.js:154:27 in invoke
- node_modules/regenerator-runtime/runtime.js:164:18 in PromiseImpl.resolve.then$argument_0
- node_modules/react-native/node_modules/promise/setimmediate/core.js:37:13 in tryCallOne
- node_modules/react-native/node_modules/promise/setimmediate/core.js:123:24 in setImmediate$argument_0
- node_modules/react-native/Libraries/Core/Timers/JSTimers.js:130:14 in _callTimer
- node_modules/react-native/Libraries/Core/Timers/JSTimers.js:181:14 in _callImmediatesPass
- node_modules/react-native/Libraries/Core/Timers/JSTimers.js:441:30 in callImmediates
- node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:387:6 in __callImmediates
- node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:135:6 in __guard$argument_0
- node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:364:10 in __guard
- node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:134:4 in flushedQueue
* [native code]:null in flushedQueue
* [native code]:null in invokeCallbackAndReturnFlushedQueue

原因

Expo SDK v39 で react-native-elements のv3.1.0をインストールした際に依存関係が競合したのが原因

yarn.lockを見てみると以下のようになっていてreact-native-safe-area-contextの3.1.4と3.1.9が共存してしまっているのが分かる．

yarn.lockreact-native-safe-area-context@3.1.4:
  version "3.1.4"
  resolved "https://registry.yarnpkg.com/react-native-safe-area-context/-/react-native-safe-area-context-3.1.4.tgz#9b7f883a5ae8da6218d17467a350434005893602"
  integrity sha512-bXx3hqz4LovFoMnJIRGIWL2oJ/PHadXviBKvgZV9yNErtURQLJSn0yfQytVtiqslhaBMZOJwH4R6HiClyofvBg==

react-native-safe-area-context@^3.1.9:
  version "3.1.9"
  resolved "https://registry.yarnpkg.com/react-native-safe-area-context/-/react-native-safe-area-context-3.1.9.tgz#48864ea976b0fa57142a2cc523e1fd3314e7247e"
  integrity sha512-wmcGbdyE/vBSL5IjDPReoJUEqxkZsywZw5gPwsVUV1NBpw5eTIdnL6Y0uNKHE25Z661moxPHQz6kwAkYQyorxA==

Expo SDK v39はreact-native-safe-area-context @3.1.4に依存していて，react-native-elements v3.1.0はreact-native-safe-area-context@^3.1.9に依存しているのでExpoのバージョンを上げるかreact-native-elements のバージョンを下げるかする必要がある(react-native-elements v2.3.2はreact-native-safe-area-contextに依存していない)．

Expo SDK v40はreact-native-safe-area-context@^3.1.9 に依存していてreact-native-elements v3.1.0 の依存関係と競合していないので自分はExpo SDKをv39->v40にアップデートした．

Expo SDK v40の概要とアップデート方法