title: Blank Parameter Panel in Crystal Reports Viewer
body: <p>I'm building a web based (ASP .NET) application to display Crystal Reports. The reports itself have been build in Crystal Reports XI and I'm working in Visual Studio 2010. It's working but the Parameter Panel visible on the left of the report is blank, eg. it does not display any parameters even though the report has a few of them and the user is prompted to enter their values before the report is generated. I've found some information that this might be caused by an old version of Crystal Reports (XI) used to produce those reports and, indeed, a test report written in Visual Studio 2010 has its parameters shown correctly. </p>
  
  <p>My question is: How can I make this to work without rewriting the reports once again? I tried to open up an existing report in Visual Studio and saving it, it gave me a warning that this the current version of the report is newer than the previous one, however it didn't solve the issue. Any ideas? </p>
  
  <p><img src="https://i.imgur.com/VG5S7.png" alt="parameterPanel"></p>