title: Import .CPP files from a working iOS project and rename to .mm issue
body: <p>I have copied a .CPP and its .h file from a working project to a new one.</p>
  
  <p>I renamed the ending from .CPP to .mm but it still gives me errors.</p>
  
  <p>In the .h file, near the class definition
  <code>class MeterTable</code>,  it says it expect the <code>;</code></p>
  
  <p>In the .mm file, there are all kinds of errors.</p>
  
  <p>I thought by changing the ending of the implementation file .mm it would clean all those errors. And yes, the original .CPP file compiled under the old project. </p>