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Unknown server tag issue

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answered on 24 Apr 2008, 12:40 PM

I realized a long time ago that I didn't want to do development over a network share. Visual Studio really doesn't seem to like that.

I've boiled this down to the absolute minimum.

I have the following files in my project:

\bin\Telerik.Web.UI.dll
\bin\Telerik.Web.UI.XML
\default.aspx
\web.config

If I use the production release of RadControls for ASP.Net Ajax, it works fine. If I change the DLL and XML file to that of the hotfix, it falls apart. I don't get the intellisense and all that.

Here is my web.config:

    
            <?xml version="1.0"?> 
        
            <!--  
        
                Note: As an alternative to hand editing this file you can use the  
        
                web admin tool to configure settings for your application. Use 
        
                the Website->Asp.Net Configuration option in Visual Studio. 
        
                A full list of settings and comments can be found in  
        
                machine.config.comments usually located in  
        
                \Windows\Microsoft.Net\Framework\v2.x\Config  
        
            --> 
        
            <configuration> 
        
                <configSections> 
        
                    <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"> 
        
                        <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"> 
        
                            <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/> 
        
                            <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"> 
        
                                <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="Everywhere"/> 
        
                                <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/> 
        
                                <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/> 
        
                            </sectionGroup> 
        
                        </sectionGroup> 
        
                    </sectionGroup> 
        
                </configSections> 
        
                <appSettings> 
        
                </appSettings> 
        
                <system.web> 
        
                    <!--  
        
                        Set compilation debug="true" to insert debugging  
        
                        symbols into the compiled page. Because this  
        
                        affects performance, set this value to true only  
        
                        during development. 
        
                    --> 
        
                    <compilation debug="true"> 
        
               <assemblies> 
        
                <add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" /> 
        
                <add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" /> 
        
                <add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" /> 
        
               </assemblies> 
        
              </compilation> 
        
                    <customErrors mode="Off"/> 
        
                    <trace enabled="false" localOnly="false" requestLimit="50" pageOutput="true" traceMode="SortByTime"/> 
        
                    <!-- 
        
                        The <authentication> section enables configuration  
        
                        of the security authentication mode used by  
        
                        ASP.NET to identify an incoming user.  
        
                    --> 
        
                    <authentication mode="None"/> 
        
                    <!-- 
        
                        The <customErrors> section enables configuration  
        
                        of what to do if/when an unhandled error occurs  
        
                        during the execution of a request. Specifically,  
        
                        it enables developers to configure html error pages  
        
                        to be displayed in place of a error stack trace. 
        
                    <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm"> 
        
                        <error statusCode="403" redirect="NoAccess.htm" /> 
        
                        <error statusCode="404" redirect="FileNotFound.htm" /> 
        
                    </customErrors> 
        
                    --> 
        
                    <pages enableEventValidation="false" > 
        
                        <controls> 
        
                            <!-- Common header links for all pages --> 
        
                            <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/> 
        
                            <add assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagPrefix="telerik"/> 
        
                        </controls> 
        
                        <namespaces> 
        
                            <clear/> 
        
                            <!-- <add namespace="com.paypal.www"/>  --> 
        
                            <add namespace="System"/> 
        
                            <add namespace="System.Collections"/> 
        
                            <add namespace="System.Collections.Specialized"/> 
        
                            <add namespace="System.Configuration"/> 
        
                            <add namespace="System.Text"/> 
        
                            <add namespace="System.Text.RegularExpressions"/> 
        
                            <add namespace="System.Web"/> 
        
                            <add namespace="System.Web.Caching"/> 
        
                            <add namespace="System.Web.SessionState"/> 
        
                            <add namespace="System.Web.Security"/> 
        
                            <add namespace="System.Web.Profile"/> 
        
                            <add namespace="System.Web.UI"/> 
        
                            <add namespace="System.Web.UI.WebControls"/> 
        
                            <add namespace="System.Web.UI.WebControls.WebParts"/> 
        
                            <add namespace="System.Web.UI.HtmlControls"/> 
        
                            <add namespace="Telerik.Web.UI"/> 
        
                        </namespaces> 
        
                    </pages> 
        
                    <httpHandlers> 
        
               <remove path="*.asmx" verb="*" /> 
        
               <add path="*.asmx" verb="*" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" 
        
                validate="false" /> 
        
               <add path="*_AppService.axd" verb="*" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" 
        
                validate="false" /> 
        
               <add path="ScriptResource.axd" verb="GET,HEAD" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" 
        
                validate="false" /> 
        
               <add path="Telerik.Web.UI.DialogHandler.aspx" verb="*" type="Telerik.Web.UI.DialogHandler, Telerik.Web.UI" 
        
                validate="false" /> 
        
               <add path="Telerik.Web.UI.SpellCheckHandler.axd" verb="*" type="Telerik.Web.UI.SpellCheckHandler, Telerik.Web.UI" 
        
                validate="false" /> 
        
              </httpHandlers> 
        
                    <httpModules> 
        
                        <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/> 
        
                    </httpModules> 
        
                </system.web> 
        
            </configuration>

Here is my default.aspx:

    
            <%@ Page Language="VB" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
        
            <script runat="server"> 
        
            </script> 
        
            <html xmlns="http://www.w3.org/1999/xhtml"> 
        
            <head runat="server"> 
        
                <title>Untitled Page</title> 
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server"> 
        
                <div> 
        
                    <asp:ScriptManager ID="ScriptManager1" runat="server" /> 
        
                <Telerik:RadTabstrip runat="server"> 
        
                        <tabs> 
        
                            <Telerik:RadTab runat="server" text="Tab 1" /> 
        
                            <Telerik:RadTab runat="server" text="Tab 2" /> 
        
                            <Telerik:RadTab runat="server" text="Tab 3" /> 
        
                        </tabs> 
        
                </Telerik:RadTabstrip> 
        
                </div> 
        
                </form> 
        
            </body> 
        
            </html>

To test this, I put the production DLL and XML file in and do a web build. I then go to the default.aspx and attempt to insert a new Telerik element. I get the intellisense. I then put the hotfix DLL and XML file and do a web build again. I go back to the default.aspx and attempt to insert a new Telerik element, and I don't get any intellisense. I start typing "<Tel" and none of the Telerik tags show in the intellisense at that point. If I go to an existing tag, I can't get the intellisense there, either.

Thanks for looking into this.

answered on 25 Apr 2008, 10:15 AM

IntellisenseTest.zip

Hi Barry,

Thank you for the further details. Please find attached a project we created based on your code. We used trial dll's. Everything ran without problems at our side. What might be the difference in your case?

Regards,
Helen
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

answered on 25 Apr 2008, 05:01 PM

When I installed this project on my machine, I get the green squiggly lines under each of the Telerik controls:

"Unrecognized tag prefix or device filter 'Telerik'.

I'm thinking - ok, guessing actually - that there is some sort of version confusion thing going on. I'm guessing this based on what searching I've done online and the fact that the production version of the Telerik files don't have a problem, but the hotfix version of the files does. In fact, if I replace the bin files in your project with the production version, it starts working again. I put them back, and the problem resurfaces. I don't even have to do the rebuild actually, as it picks up the changes in a few seconds.

In the past, I've had problems with the installation of one version of the Telerik tools on top of another. I generally uninstall everything and then install the new versions (which can take quite a long time). On this machine, only the latest version (production RadControls for ASP.Net Ajax) is showing as installed, but there are folders for older versions. I'm going to uninstall everything, delete all of the files, reboot, install the latest version, and see what happens. I'll post with an update when this is all done...

answered on 25 Apr 2008, 08:01 PM

Well, that was a lot of work for nothing.

I completely uninstalled all Telerik versions. I actually only had the latest, but I had a couple of other folders in the Program Files/Telerik folder, so I made sure that was all deleted.

I then scanned the registry for "Telerik". It pointed to the folders "\Program Files\Common Files\Telerik..." and "\Program Files\Telerik", so I made sure both of those folders were completely removed. There were several other registry entries that referenced Telerik, but I didn't feel confident altering or deleting any of them.

I rebooted and accessed the IntellisenseTest application. No matter which version I had of the DLL/XML files, it gave me the warning.

I installed the production version and rebooted, and I ended up back where I started. If I put the current production version of the DLL/XML files, it works. If I put in the hotfix files (either the ones I got for real or the ones in your zip file), I get the warnings.

I wonder... In the web.config file where you add the controls, there is an entry for asp and one for telerik. The asp entry has a version, culture, and publickeytoken. Would it help to add a version for the telerik one? If so, what version (or more) would you need to put in there. I tried 2008.1.416.20 and it didn't have an affect. I did see it validates it because if I put an invalid version number, it would tell me it couldn't find it.

On a whim, I finally searched the registry for 2008.1.415.20 and 2008.01.0415.20 in hopes that there might be a version reference in there. Neither were found.

An finally, I searched for ALL Telerik.Web.UI DLL and XML files and made sure they were the latest hotfix version. My goal here was to make sure it wasn't VS 2008 wasn't picking up the references from another location. I also rebooted to make sure there wasn't anything left in memory. It still failed.

I popped my thumb drive back in to restore the production version of the files to your application, and within seconds, the warnings went away.

I even went so far as to go into Windows System Information to see the loaded modules to see if there were more copies of the DLL in memory, and it didn't find anything. Just the one that was loaded from the temporary asp.net files folder.

I'm not sure what else I could look for.

I guess I'm lucky. I can program with one version and execute with another.

Thanks.

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Unknown server tag issue

20 Answers, 1 is accepted