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Could not load file or assembly on Medium Trust Level

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This is a migrated thread and some comments may be shown as answers.

Jun Ting asked on 22 Oct 2009, 11:33 AM

The error below is showing when using the Radgrid.
The server has Medium Trust Level. Others component such as Tabstrip is working.
The telerik version is "2009.2.826.35".
We have also add the line to the web.config:

add assembly="Telerik.Web.UI, Version=2009.2.826.35, Culture=neutral, PublicKeyToken=121FAE78165BA3D4"/>
<httpHandlers>
<add path="Telerik.Web.UI.WebResource.axd" verb="*"

type="Telerik.Web.UI.WebResource, Telerik.Web.UI, Version=2009.2.826.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4"

validate="false" />

httpHandlers>

    
            Could not load file or assembly 'System, Version=1.0.7.30072, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies. The system cannot find the file specified.   
        
            Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.   
        
            Exception Details: System.IO.FileNotFoundException: Could not load file or assembly 'System, Version=1.0.7.30072, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies. The system cannot find the file specified.  
        
            Source Error:   
        
            An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.    
        
            Assembly Load Trace: The following information can be helpful to determine why the assembly 'System, Version=1.0.7.30072, Culture=neutral, PublicKeyToken=c5687fc88969c44d' could not be loaded.

7 Answers, 1 is accepted

answered on 27 Oct 2009, 02:06 AM

I still can't find the reason that causing the error. It working in our local server. But, it didn't work in the shared hosting. (Medium Trust Level).
Here is the page that showed the error.
http://www.mercy.org.my/default4.aspx

Below is the 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=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">  
        
                  <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">  
        
                    <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> 
        
                    <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">  
        
                      <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere" /> 
        
                      <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> 
        
                      <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> 
        
                      <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> 
        
                    </sectionGroup> 
        
                  </sectionGroup> 
        
                </sectionGroup> 
        
              </configSections> 
        
                <appSettings> 
        
                    <!--Remove App Setting--> 
        
                </appSettings> 
        
                <connectionStrings> 
        
                  <!--Remove connection string--> 
        
                </connectionStrings> 
        
              <system.net> 
        
                <mailSettings> 
        
                  <!--<smtp deliveryMethod="SpecifiedPickupDirectory">--> 
        
                  <smtp> 
        
                  </smtp> 
        
                </mailSettings> 
        
              </system.net> 
        
              <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.  
        
                        Visual Basic options:  
        
                        Set strict="true" to disallow all data type conversions   
        
                        where data loss can occur.   
        
                        Set explicit="true" to force declaration of all variables.  
        
                    --> 
        
                <compilation debug="true" strict="false" explicit="true">  
        
                  <assemblies> 
        
                    <add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" /> 
        
                    <add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> 
        
                    <add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" /> 
        
                    <add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" /> 
        
                     <add assembly="Telerik.Web.UI, Version=2009.2.826.35, Culture=neutral, PublicKeyToken=121FAE78165BA3D4"/>  
        
                  </assemblies> 
        
                </compilation> 
        
                <pages> 
        
                  <namespaces> 
        
                    <clear /> 
        
                    <add namespace="System" /> 
        
                    <add namespace="System.Collections" /> 
        
                    <add namespace="System.Collections.Generic" /> 
        
                    <add namespace="System.Collections.Specialized" /> 
        
                    <add namespace="System.Configuration" /> 
        
                    <add namespace="System.Text" /> 
        
                    <add namespace="System.Text.RegularExpressions" /> 
        
                    <add namespace="System.Linq" /> 
        
                    <add namespace="System.Xml.Linq" /> 
        
                    <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" /> 
        
                  </namespaces> 
        
                  <controls> 
        
                    <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> 
        
                    <add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> 
        
                  </controls> 
        
                </pages> 
        
                <!--  
        
                        The <authentication> section enables configuration   
        
                        of the security authentication mode used by   
        
                        ASP.NET to identify an incoming user.   
        
                    --> 
        
                <!--  
        
                        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> 
        
                    --> 
        
                <customErrors mode="Off" defaultRedirect="error.htm">  
        
                  <error statusCode="404" redirect="error.htm?e=404" /> 
        
                </customErrors> 
        
                <authentication mode="Forms">  
        
                  <forms loginUrl="icube/default.aspx?e=1" protection="All" timeout="120" name=".ASPXAUTH" path="/" requireSSL="false" slidingExpiration="true" defaultUrl="icube/menu.aspx" cookieless="UseDeviceProfile" enableCrossAppRedirects="false" /> 
        
                </authentication> 
        
                <httpRuntime executionTimeout="900" maxRequestLength="10240" /> 
        
                <httpHandlers> 
        
                  <remove verb="*" path="*.asmx" /> 
        
                  <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> 
        
                  <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> 
        
                  <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" /> 
        
                    <!--<add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false" />--> 
        
                    <add path="Telerik.Web.UI.WebResource.axd" verb="*" 
        
              type="Telerik.Web.UI.WebResource, Telerik.Web.UI, Version=2009.2.826.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" 
        
              validate="false" /> 
        
                </httpHandlers> 
        
                <httpModules> 
        
                  <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> 
        
                </httpModules> 
        
              </system.web> 
        
              <system.codedom> 
        
                <compilers> 
        
                  <compiler language="c#;cs;csharp" extension=".cs" warningLevel="4" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">  
        
                    <providerOption name="CompilerVersion" value="v3.5" /> 
        
                    <providerOption name="WarnAsError" value="false" /> 
        
                  </compiler> 
        
                  <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" warningLevel="4" type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">  
        
                    <providerOption name="CompilerVersion" value="v3.5" /> 
        
                    <providerOption name="OptionInfer" value="true" /> 
        
                    <providerOption name="WarnAsError" value="false" /> 
        
                  </compiler> 
        
                </compilers> 
        
              </system.codedom> 
        
              <!--   
        
                    The system.webServer section is required for running ASP.NET AJAX under Internet  
        
                    Information Services 7.0.  It is not necessary for previous version of IIS.  
        
                --> 
        
              <system.webServer> 
        
                <validation validateIntegratedModeConfiguration="false" /> 
        
                <modules> 
        
                  <remove name="ScriptModule" /> 
        
                  <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> 
        
                </modules> 
        
                <handlers> 
        
                  <remove name="WebServiceHandlerFactory-Integrated" /> 
        
                  <remove name="ScriptHandlerFactory" /> 
        
                  <remove name="ScriptHandlerFactoryAppServices" /> 
        
                  <remove name="ScriptResource" /> 
        
                  <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> 
        
                  <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> 
        
                  <add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> 
        
                  <add name="Telerik_Web_UI_WebResource_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" /> 
        
                </handlers> 
        
              </system.webServer> 
        
              <runtime> 
        
                <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">  
        
                  <dependentAssembly> 
        
                    <assemblyIdentity name="System.Web.Extensions" publicKeyToken="31bf3856ad364e35" /> 
        
                    <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0" /> 
        
                  </dependentAssembly> 
        
                  <dependentAssembly> 
        
                    <assemblyIdentity name="System.Web.Extensions.Design" publicKeyToken="31bf3856ad364e35" /> 
        
                    <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0" /> 
        
                  </dependentAssembly> 
        
                </assemblyBinding> 
        
              </runtime> 
        
            </configuration>

answered on 28 Oct 2009, 05:02 PM

Hello Jun Ting,

All Telerik controls are server controls and have to be installed on the web server in order to function properly. This also means that you will need to create the respective virtual directories and give the proper permissions (ASPNET [IIS5], NEtwork Service [IIS6]) in order to use them on the shared hosting.

For more information about deploying RadControls on server, refer to the following articles:
Deploying RadControls on Shared Hosting
http://www.google.bg/search?sourceid=navclient&aq=h0&oq=deploy%20&ie=UTF-8&rlz=1T4GPTB_enBG314BG314&q=deploy+asp.net+web+site

I hope this helps.

Greetings,
Pavlina
the Telerik team

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