title: EXPO: Unable to resolve module ‘./debugger
body: <p>After a reload my app has stopped loading.</p>
  
  <p>I have tried on both emulators and 2 real devives, android and ios. </p>
  
  <p>The error is:</p>
  
  <blockquote>
    <p>Error: Unable to resolve module <code>./debugger-ui/debuggerWorker.d9da4ed7</code> from ``:</p>
  </blockquote>
  
  <p>and occassionally I will get the error, 'unable to locate instance'.</p>
  
  <p>I have tried the following:</p>
  
  <ol>
  <li>Clear watchman watches: <code>watchman watch-del-all</code> .</li>
  <li>Delete the <code>node_modules</code> folder: <code>rm -rf node_modules &amp;&amp; npm install</code> .</li>
  <li>Reset Metro Bundler cache: <code>rm -rf /tmp/metro-bundler-cache-*</code> or <code>npm start -- --reset-cache</code> .</li>
  <li>Remove haste cache: <code>rm -rf /tmp/haste-map-react-native-packager-*</code> .</li>
  <li><p>Restart the computer.</p>
  
  <pre><code>  Expo CLI 3.11.3 environment info:
      System:
        OS: macOS 10.15.2
        Shell: 5.7.1 - /bin/zsh
      Binaries:
        Node: 12.8.0 - ~/.nvm/versions/node/v12.8.0/bin/node
        Yarn: 1.19.1 - /usr/local/bin/yarn
        npm: 6.13.4 - ~/.nvm/versions/node/v12.8.0/bin/npm
        Watchman: 4.9.0 - /usr/local/bin/watchman
      IDEs:
        Android Studio: 3.5 AI-191.8026.42.35.5791312
        Xcode: 11.2/11B41 - /usr/bin/xcodebuild
      npmPackages:
        expo: ~36.0.0 =&gt; 36.0.2
        react: ~16.9.0 =&gt; 16.9.0
        react-native: https://github.com/expo/react-native/archive/sdk-36.0.0.tar.gz =&gt; 0.61.4
        react-navigation: ^4.0.10 =&gt; 4.0.10
      npmGlobalPackages:
        expo-cli: 3.11.3
  </code></pre></li>
  </ol>
  
  <p>Any ideas on what else I can try to resolve this?</p>
  
  <p>The full error below: </p>
  
  <pre><code>
  Error: Unable to resolve module `./debugger-ui/debuggerWorker.d9da4ed7` from ``:
  
  None of these files exist:
    * debugger-ui/debuggerWorker.d9da4ed7(.native|.native.expo.ts|.expo.ts|.native.expo.tsx|.expo.tsx|.native.expo.js|.expo.js|.native.expo.jsx|.expo.jsx|.native.ts|.ts|.native.tsx|.tsx|.native.js|.js|.native.jsx|.jsx|.native.json|.json|.native.wasm|.wasm)
    * debugger-ui/debuggerWorker.d9da4ed7/index(.native|.native.expo.ts|.expo.ts|.native.expo.tsx|.expo.tsx|.native.expo.js|.expo.js|.native.expo.jsx|.expo.jsx|.native.ts|.ts|.native.tsx|.tsx|.native.js|.js|.native.jsx|.jsx|.native.json|.json|.native.wasm|.wasm)
      at ModuleResolver.resolveDependency (/Users/serdarmustafa/task_location_namespace/node_modules/metro/src/node-haste/DependencyGraph/ModuleResolution.js:163:15)
      at ResolutionRequest.resolveDependency (/Users/serdarmustafa/task_location_namespace/node_modules/metro/src/node-haste/DependencyGraph/ResolutionRequest.js:52:18)
      at DependencyGraph.resolveDependency (/Users/serdarmustafa/task_location_namespace/node_modules/metro/src/node-haste/DependencyGraph.js:282:16)
      at /Users/serdarmustafa/task_location_namespace/node_modules/metro/src/lib/transformHelpers.js:267:42
      at /Users/serdarmustafa/task_location_namespace/node_modules/metro/src/Server.js:1305:37
      at Generator.next (&lt;anonymous&gt;)
      at asyncGeneratorStep (/Users/serdarmustafa/task_location_namespace/node_modules/metro/src/Server.js:99:24)
      at _next (/Users/serdarmustafa/task_location_namespace/node_modules/metro/src/Server.js:119:9)
      at processTicksAndRejections (internal/process/task_queues.js:85:5)
  </code></pre>