Question

我正在本地环境中克隆一个现有的react native应用程序，但是每次我运行“ react-native run-ios”时，都会出现以下错误：

** BUILD FAILED **


The following commands produced analyzer issues:
	Analyze /Users/alydabbous/code/Dabbous-Innopay/ideal-app/node_modules/react-native/ReactCommon/yoga/yoga/YGNodeList.c normal x86_64

	Analyze /Users/alydabbous/code/Dabbous-Innopay/ideal-app/node_modules/react-native/ReactCommon/yoga/yoga/Yoga.c normal x86_64
	Analyze Base/RCTModuleMethod.mm normal x86_64
(3 commands with analyzer issues)

The following build commands failed:
	Ld build/Build/Products/Debug-iphonesimulator/MyUros.app/MyUros normal x86_64
(1 failure)

Installing build/Build/Products/Debug-iphonesimulator/TPP.app
An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=2):
Failed to install the requested application
An application bundle was not found at the provided path.
Provide a valid path to the desired application bundle.
Print: Entry, ":CFBundleIdentifier", Does Not Exist

Command failed: /usr/libexec/PlistBuddy -c Print:CFBundleIdentifier build/Build/Products/Debug-iphonesimulator/TPP.app/Info.plist
Print: Entry, ":CFBundleIdentifier", Does Not Exist

以及react-packager中的此错误：

Loading dependency graph...(node:52097) UnhandledPromiseRejectionWarning: Error: `fsevents` unavailable (this watcher can only be used on Darwin)
    at new FSEventsWatcher (/Users/alydabbous/code/Dabbous-Innopay/ideal-app/node_modules/sane/src/fsevents_watcher.js:41:11)
    at createWatcher (/Users/alydabbous/code/Dabbous-Innopay/ideal-app/node_modules/jest-haste-map/build/index.js:600:23)
    at Array.map (<anonymous>)
    at HasteMap._watch (/Users/alydabbous/code/Dabbous-Innopay/ideal-app/node_modules/jest-haste-map/build/index.js:747:25)
    at _buildPromise._buildFileMap.then.then.hasteMap (/Users/alydabbous/code/Dabbous-Innopay/ideal-app/node_modules/jest-haste-map/build/index.js:279:21)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:189:7)
(node:52097) 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: 1)
(node:52097) [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.

当我为克隆的仓库运行'react-native run-ios'时，只会出现此错误。但是，当我创建一个新的本机应用程序时，一切正常。我尝试了一切：杀死服务器，再次卸载并安装节点，删除我的node_modules文件等，但仍然无法解决此问题。任何帮助将非常感激。谢谢。

Answer 1

对我来说，我卸载了watchman，然后使用brew重新安装了它，如下所示：

npm r -g watchman 
brew install watchman

Answer 2

npm install -g fsevents

为我工作

Answer 3

尝试开玩笑时出现相同的错误。对我来说，一个简单的解决方案是通过npm安装fsevents模块（我假设这就是您的错误消息告诉您的内容）。我也在使用React应用程序，并且还有其他类似的错误。

希望这会有所帮助！

Answer 4

在编写React本机应用程序时，我遇到了以下问题。 watchamn似乎有一个错误，因此我们需要重新安装它：

L

brew remove watchman

我希望对您有帮助，

Answer 5

对我来说，这发生在create-react-app中。我通过更新react-scripts

解决了此问题

yarn add react-scripts@latest

然后删除node_modules，然后重新安装

yarn

Answer 6

卸载守望者，然后用 brew 重新安装：

npm r -g 守望者

brew install watchman

Answer 7

就我而言，在MacOS更新之后，我需要更新的yarn版本。

curl --compressed -o- -L https://yarnpkg.com/install.sh | bash

Answer 8

有时此问题可能与您正在运行的节点版本有关。如果使用的是nvm，请尝试切换到其他节点版本，然后查看是否可以解决。它在类似的问题上对我有用。

错误：`fsevents`不可用（该监视程序只能在达尔文上使用）

8 个答案: