title: Cannot find module that is defined in tsconfig `paths`
body: <p>I am trying to setup aliases for my mock server. Whenever I try to compile <code>ts</code> files, it returns error that it couldn't find proper modules even though those are defined in <code>tsconfig,json</code>-><code>paths</code></p>
  
  <p>Folder structure:</p>
  
  <pre class="lang-sh prettyprint-override"><code>├── server
  │   └── src
  │       └──/json
  ├── src
  │   └──/modules
  ├── tsconfig.json
  </code></pre>
  
  <p>Here is my <code>tsconfig.json</code></p>
  
  <pre><code>{
      "compilerOptions": {
          "baseUrl": "./src",
          "experimentalDecorators": true,
          "jsx": "react",
          "lib": [
              "dom",
              "es2015",
              "es2015.promise"
          ],
          "module": "commonjs",
          "moduleResolution": "node",
          "noImplicitAny": true,
          "noUnusedLocals": true,
          "esModuleInterop": true,
          "paths": {
              "@project/app/modules/*": [
                  "modules/*"
              ],
              "@project/server/data/*": [
                  "../server/src/json/*"
              ]
          },
          "sourceMap": true,
          "target": "es5"
      },
      "exclude": [
          "node_modules",
          "tools"
      ]
  }
  </code></pre>
  
  <p>Error:
  <code>Error: Cannot find module '@project/server/data/accounts/accountsList'</code></p>