React Native Android运行报错：未计算指定文件的SHA-1

报错信息 #

ReferenceError: SHA-1 for file C:\Users\usr\app\node_modules@react-native\metro-config\node_modules@react-native\js-polyfills\console.js (C:\Users\usr\app\node_modules@react-native\metro-config\node_modules@react-native\js-polyfills\console.js) is not computed. Potential causes: 1) You have symlinks in your project - watchman does not follow symlinks. 2) Check blockList in your metro.config.js and make sure it isn't excluding the file path.

at DependencyGraph.getSha1 (C:\Users\usr\app\realapp\node_modules\metro\src\node-haste\DependencyGraph.js:215:13)
at Transformer._getSha1 (C:\Users\usr\lace\realapp\node_modules\metro\src\Bundler.js:26:26)
at Transformer.transformFile (C:\Users\usr\lace\realapp\node_modules\metro\src\DeltaBundler\Transformer.js:107:19)
at Bundler.transformFile (C:\Users\usr\app\realapp\node_modules\metro\src\Bundler.js:60:30)
at async Object.transform (C:\Users\usr\app\realapp\node_modules\metro\src\lib\transformHelpers.js:150:12)
at async Graph._processModule (C:\Users\usr\app\lace\realapp\node_modules\metro\src\DeltaBundler\Graph.js:257:20)
at async Graph._traverseDependenciesForSingleFile (C:\Users\usr\app\realapp\node_modules\metro\src\DeltaBundler\Graph.js:249:5)
at async Promise.all (index 1)
at async Graph.initialTraverseDependencies (C:\Users\usr\app\realapp\node_modules\metro\src\DeltaBundler\Graph.js:233:5)
at async DeltaCalculator._getChangedDependencies (C:\Users\usr\app\realapp\node_modules\metro\src\DeltaBundler\DeltaCalculator.js:229:25)

解决步骤 #

1. 移除项目符号链接并重装依赖 #

• 检查项目中是否存在npm link/yarn link创建的符号链接，执行解除命令：

  # yarn环境
  yarn unlink <关联的包名>
  # npm环境
  npm unlink <关联的包名>
  

• 强制重装依赖：

  yarn install --force
  # 或npm
  npm install --force
  

2. 检查并调整metro.config.js的blockList #

• 打开项目根目录的metro.config.js，找到blockList配置项
• 确保没有排除报错路径node_modules/@react-native/metro-config/node_modules/@react-native/js-polyfills/console.js，删除相关排除规则，示例配置：

  const { getDefaultConfig, mergeConfig } = require('@react-native/metro-config');
  const config = {};
  module.exports = mergeConfig(getDefaultConfig(__dirname), config);
  

3. 清除缓存并重启服务 #

• 停止当前Metro服务，清除Metro缓存：

  npx metro-cache clean
  

• 可选：清除Android构建缓存

  cd android && ./gradlew clean && cd ..
  

• 重新启动应用：

  yarn android
  

4. 禁用Watchman（备选方案） #

• 在metro.config.js中添加配置，用文件系统监听替代Watchman：

  module.exports = {
    watcher: 'fs',
    resolver: {
      disableHierarchicalLookup: true,
    },
  };
  

• 重启Metro服务

内容的提问来源于stack exchange，提问作者NOt rnaomd