The server tag XXX is ambiguous. Please modify the associated registration

Problem

You get this error when compiling your application.

The server tag XXX is ambiguous. Please modify the associated registration that is causing ambiguity and pick a new tag prefix.

This error occurs when two or more Infragistics releases (versions) have been used, or mixed, within your application.

Solution

Step 1: Go to your application’s \bin folder.

Step 2: Make sure all the Infragistics DLLs in the \bin folder belong to a particular release of Infragistics.  Delete other Infragistics DLL versions from the Bin folder.

Step 3: In Iron Speed Designer, open the application and reconfigure all Infragistics controls.  When reconfiguring, please make sure to select DLLs that belong to same Infragistics release.

See Also

Part IX:  Troubleshooting Applications

Application Generation and Compilation Error Messages