title: SSRS - Custom parameter layout was removed from the report
body: <p>I installed a fresh copy of Visual Studio 2015 on a new computer as well as the SSDT December preview. Report server is SQL Server 2008 R2. I can view and build my reports successfully, no problems there, but for about half of the reports I get the following warning message:</p>
  
  <pre><code>Custom parameter layout was removed from the report. /
  SQL Server 2014 Reporting Services and earlier do not support custom parameter layout.
  </code></pre>
  
  <p>The message appears every time I clean/rebuild, so something isn't changing permanently like VS claims. I don't even know what a custom parameter layout is, so I'm pretty sure I don't need to worry about this. How can I either disable the warning message or fix the problem it's complaining about?</p>