PROBLEM After upgrading RadComboBox 1.x to v2.0 all of the RadComboBoxes in the project show "Error Creating Control" in design view and "Unknown Server Tag Radc:Combobox" error when you hover over the control.SOLUTIONFor consistency among all RadControls, the name of the combobox is changed in terms of case-sensitivity - in 1.5.2 it was RadComboBox while in 2.0.0 it is RadCombobox. Depending on your VS.NET settings, this may produce the above errors.To solve the problem, change the control registration tag manuallyfrom:<%@ Register TagPrefix="radcb" Namespace="Telerik.WebControls" Assembly="RadComboBox" %>to<%@ Register TagPrefix="radcb" Namespace="Telerik.WebControls" Assembly="RadComboBox" %>If this does not fix the issues, please start a support ticket and send us a sample subset of your project reproducing this issue.
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