I'm trying to write a datasnap client using Delphi Prism in Visual Studio 2010. when I try to create a Data Connection (in Server Explorer), using DataSnap provider, I get this error:
Unable to find the requested .Net Framework Data Provider. It may not be installed.
Finally I found the answer. Seems .net configuration file has been corrupted. I think it had been broken after I installed Delphi XE or Delphi XE2. Everything worked greate when I fixed the corrupted file.
answer is here:
http://social.msdn.microsoft.com/Forums/hu-HU/vseditor/thread/7b4f353b-77fd-427c-976b-5968abc88c13