title: Module build failed (from ./node_modules/@ngtools/webpack/src/index.js):
body: <p>I have created an application on angular 7 and ionic 4.
  I tried to edit app.routing.ts file, setting path and component. From then on I am getting this error below: </p>
  
  <pre><code>ERROR in ./src/app/department/department.module.ts
  [ng] Module build failed (from ./node_modules/@ngtools/webpack/src/index.js):
  [ng] Error: ENOENT: no such file or directory, open 'C:\Users\x\department\department.module.ts'
  [ng]     at Object.openSync (fs.js:436:3)
  [ng]     at Object.readFileSync (fs.js:341:35)
  [ng]     at Storage.provideSync (C:\Users\x\node_modules\enhanced-resolve\lib\CachedInputFileSystem.js:98:13)
  </code></pre>