mac 编译并运行 React Native 应用报错

mac构建ios应用，报错，错误信息：

error: ReferenceError: SHA-1 for file /Users/Freya/work/projects/AwesomeProject/node_modules/metro-runtime/src/polyfills/require.js (/Users/Freya/work/projects/AwesomeProject/node_modules/metro-runtime/src/polyfills/require.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 (/Users/Freya/work/projects/AwesomeProject/node_modules/metro/src/node-haste/DependencyGraph.js:245:13)
    at Transformer.transformFile (/Users/Freya/work/projects/AwesomeProject/node_modules/metro/src/DeltaBundler/Transformer.js:104:23)
    at Bundler.transformFile (/Users/Freya/work/projects/AwesomeProject/node_modules/metro/src/Bundler.js:48:30)
    at async Object.transform (/Users/Freya/work/projects/AwesomeProject/node_modules/metro/src/lib/transformHelpers.js:101:12)
    at async processModule (/Users/Freya/work/projects/AwesomeProject/node_modules/metro/src/DeltaBundler/traverseDependencies.js:137:18)
    at async traverseDependenciesForSingleFile (/Users/Freya/work/projects/AwesomeProject/node_modules/metro/src/DeltaBundler/traverseDependencies.js:131:3)
    at async Promise.all (index 0)
    at async initialTraverseDependencies (/Users/Freya/work/projects/AwesomeProject/node_modules/metro/src/DeltaBundler/traverseDependencies.js:114:3)
    at async DeltaCalculator._getChangedDependencies (/Users/Freya/work/projects/AwesomeProject/node_modules/metro/src/DeltaBundler/DeltaCalculator.js:164:25)
    at async DeltaCalculator.getDelta (/Users/Freya/work/projects/AwesomeProject/node_modules/metro/src/DeltaBundler/DeltaCalculator.js:94:16)

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求解答，谢谢