title: Xcode - File is part of module, ignoring import
body: <p>I have existing iOS project, added Unit test target and created new test case file in <code>tests</code> folder. When i tried to import module i'm facing this issue. I referred the below stack overflow question but it did not solve my problem.</p>
  
  <p><a href="https://stackoverflow.com/questions/34889552/xcode-test-class-file-is-part-of-module-ignoring-import">Xcode - Test class File is part of module, ignoring import</a></p>
  
  <pre><code>@testable import wl_pih // Error: File 'wl_pihTests.swifts' is part of module 'wl_pih'; ignoring import
  
  class wl_pihTests: XCTestCase {
  
      let loginController = INCLoginViewController() //Not accessable
       override func setUp() {
          super.setUp()
      }
  
      override func tearDown() {
                super.tearDown()
      }
  }
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/87DFM.png"></p>