title: ng build spills a lot of errors... can't launch my app
body: <p>I don't know what happened. I was coding... then everything just broke.</p>
  
  <p>When I run <code>ng build</code> or <code>ng serve</code>, I now get the following error messages:</p>
  
  <blockquote>
    <p>ERROR in ./node_modules/saucelabs/index.js Module not found: Error:
    Can't resolve './lib-cov/SauceLabs' in
    '/Users/mlgyshan/Documents/GitHub/Nutanix2/FlexMachineLearning/FlexMachineLearning/static/node_modules/saucelabs'
    ERROR in ./node_modules/protractor/built/runner.js ...</p>
  </blockquote>
  
  <hr>
  
  <p>I ran <code>npm i</code> and it gave the following output:</p>
  
  <blockquote>
    <p>npm WARN codelyzer@3.2.2 requires a peer of @angular/compiler@^2.3.1
    || >=4.0.0-beta &lt;5.0.0 but none is installed. You must install peer
    dependencies yourself. npm WARN codelyzer@3.2.2 requires a peer of
    @angular/core@^2.3.1 || >=4.0.0-beta &lt;5.0.0 but none is installed. You
    must install peer dependencies yourself. npm WARN tsickle@0.30.0
    requires a peer of typescript@>=2.4.2 &lt;2.9 but none is installed. You
    must install peer dependencies yourself.</p>
    
    <p>audited 29419 packages in 9.015s found 58 vulnerabilities (19 low, 28
    moderate, 11 high)   run <code>npm audit fix</code> to fix them, or <code>npm audit</code>
    for details</p>
  </blockquote>