title: Could not find module ‘Test.QuickCheck’ on Mac
body: <p>When I try to test my code, IntelliJ gave me this error. However, I have used cabal install QuickCheck to install.</p>
  
  <pre><code>Testing.hs:3:1: error:
      Could not find module ‘Test.QuickCheck’
      Use -v to see a list of the files searched for.
    |
  3 | import Test.QuickCheck
    | ^^^^^^^^^^^^^^^^^^^^^^
  Failed, 0 modules loaded.
  </code></pre>