title: Error: ENOENT: no such file or directory, open 'google/protobuf/api.proto'
body: <p>I want to integrate angular universal into my project and I use AngularFire library. But when I test my app locally by running npm run build &amp;&amp; npm run serve:ssr. </p>
  
  <p>I have this error</p>
  
  <pre><code>  webpack:///./dist/server/main.js?:95613
                  throw err;
                  ^
  
      Error: ENOENT: no such file or directory, open 'google/protobuf/api.proto'
          at Object.openSync (fs.js:440:3)
          at Object.readFileSync (fs.js:342:35)
          at fetch (webpack:///./dist/server/main.js?:95679:34)
          at Root.load (webpack:///./dist/server/main.js?:95713:13)
          at Root.loadSync (webpack:///./dist/server/main.js?:95754:17)
          at Object.loadSync (webpack:///./dist/server/main.js?:133270:17)
          at Object.8ZNE (webpack:///./dist/server/main.js?:98662:37)
          at __webpack_require__ (webpack:///./dist/server/main.js?:20:30)
          at Object.BYZf (webpack:///./dist/server/main.js?:104679:19)
          at __webpack_require__ (webpack:///./dist/server/main.js?:20:30) {
        errno: -2,
        syscall: 'open',
        code: 'ENOENT',
  
    path: 'google/protobuf/api.proto'
  </code></pre>