title: Error: Node Sass does not yet support your current environment: Windows 64-bit with Unsupported runtime (67)
body: <p>I've updated an old ionic application. After the update I get the following error:</p>
  
  <p>Error: Node Sass does not yet support your current environment: Windows 64-bit with Unsupported runtime (67)</p>
  
  <p>I've googled and searched for the answer. But nothing helps. I've tried to delete de node_modules directory, also reinstalling node sass. Also downgrading.</p>
  
  <pre><code>NPM version: 6.4.1
  Node: v11.1.0
  
  npm ls node-sass
  fonville-app@0.0.1 C:\Apps\xxx
  +-- @ionic/app-scripts@3.2.0
  | `-- node-sass@4.9.0
  +-- gulp-sass@3.2.1
  | `-- node-sass@4.11.0  deduped
  `-- node-sass@4.11.0
  
  
  &gt;ionic serve
  &gt; ionic-app-scripts serve --address 0.0.0.0 --port 8100 --livereload-port                     35729 --dev-logger-port 53703 --nobrowser
  [app-scripts] C:\Users\kevin\AppData\Roaming\npm\node_modules\@ionic\app-    scripts\node_modules\node-sass\lib\binding.js:13
  [app-scripts]       throw new Error(errors.unsupportedEnvironment());
  [app-scripts]       ^
  [app-scripts] Error: Node Sass does not yet support your current environment: Windows 64-bit with Unsupported runtime (67)
  [app-scripts] For more information on which environments are supported     please see:
  [app-scripts] https://github.com/sass/node-sass/releases/tag/v4.9.0
  [app-scripts]     at module.exports     (C:\Users\kevin\AppData\Roaming\npm\node_modules\@ionic\app-    scripts\node_modules\node-sass\lib\binding.js:13:13)
  [app-scripts]     at Object.&lt;anonymous&gt;     (C:\Users\kevin\AppData\Roaming\npm\node_modules\@ionic\app-    scripts\node_modules\node-sass\lib\index.js:14:35)
  [app-scripts]     at Module._compile (internal/modules/cjs/loader.js:707:30)
  [app-scripts]     at Object.Module._extensions..js     (internal/modules/cjs/loader.js:718:10)
  [app-scripts]     at Module.load (internal/modules/cjs/loader.js:605:32)
  [app-scripts]     at tryModuleLoad (internal/modules/cjs/loader.js:544:12)
  [app-scripts]     at Function.Module._load     (internal/modules/cjs/loader.js:536:3)
  [app-scripts]     at Module.require (internal/modules/cjs/loader.js:643:17)
  [app-scripts]     at require (internal/modules/cjs/helpers.js:22:18)
  [app-scripts]     at Object.&lt;anonymous&gt;     (C:\Users\kevin\AppData\Roaming\npm\node_modules\@ionic\app-    scripts\dist\core\bundle-components.js:6:16)
  
  [ERROR] ionic-app-scripts has unexpectedly closed (exit code 1).
  
          The Ionic CLI will exit. Please check any output above for error         details.
  </code></pre>
  
  <p>Can anyone help me?</p>
  
  <p>Edit:</p>
  
  <p>It looks like it was an mismatching version numbers. After the change I got another error. Does anyone can help me with this?</p>
  
  <pre><code>&gt;ionic cordova build android --prod --release --minifyjs --minifycss
  &gt; ionic-app-scripts build --prod --minifyjs --minifycss --target cordova --platform android
  [09:04:53]  ionic-app-scripts 3.2.0
  [09:04:53]  build prod started ...
  [09:04:53]  clean started ...
  [09:04:53]  clean finished in 3 ms
  [09:04:53]  copy started ...
  [09:04:53]  deeplinks started ...
  [09:04:53]  deeplinks finished in 154 ms
  [09:04:53]  ngc started ...
  [09:04:55]  ionic-app-script task: "build"
  [09:04:55]  Error: Cannot find module '@angular/compiler-cli/ngtools2'
  Error: Cannot find module '@angular/compiler-cli/ngtools2'
      at Function.Module._resolveFilename     (internal/modules/cjs/loader.js:587:15)
  at Function.Module._load (internal/modules/cjs/loader.js:513:25)
      at Module.require (internal/modules/cjs/loader.js:643:17)
      at require (internal/modules/cjs/helpers.js:22:18)
      at C:\Users\kevin\AppData\Roaming\npm\node_modules\@ionic\app-    scripts\dist\aot\aot-compiler.js:206:90
  [ERROR] An error occurred while running subprocess ionic-app-scripts.
  
          ionic-app-scripts build --prod --minifyjs --minifycss --target     cordova --platfor... exited with exit code 1.
  
      Re-running this command with the --verbose flag may provide more information.
  </code></pre>