Cannot use /compile /str simultaneously if you specify a class name or an output file name to the /str switch as well as multiple input files to /compile. You would end up with duplicate classes or overwrite one of your classes.
Cannot unregister UpdatePanel with ID '{0}' since it was not registered with the ScriptManager. This might occur if the UpdatePanel ...
Cannot update inside TryCatch because an exception of type '{0}' has been caught but the matching catch block has been removed. ...
Cannot use '%1!ls!' as an argument to a dynamically dispatched operation because it is a method group. Did you intend to ...
Cannot use '{0}' because another language has been specified earlier in this page (or was implied from a CodeFile attribute). ...
Cannot use /compile /str simultaneously if you specify a class name or an output file name to the /str switch as well as ...
Cannot use a lambda expression as an argument to a dynamically dispatched operation without first casting it to a delegate ...
Cannot use local variable '%1!ls!' before it is declared. The declaration of the local variable hides the field '%2!ls!'. ...
Cannot use XmlNamespaceDeclarations attribute on member '{0}' of type {1}. This attribute is only valid on members of type ...
Cannot verify your permissions to this document because the server that manages permissions for this document is not available. ...