Trust Level

VERY VERY VERY URGENT PLEASE

I installed version 1.40 and made sure that all the requirepermissions are set to false.

When trying to log in i get the following error:
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Request for ConfigurationPermission failed while attempting to access configuration section 'system.web/machineKey'. To allow all callers to access the data for this section, set section attribute 'requirePermission' equal 'false' in the configuration file where this section is declared. (machine.config line 142)  

Exception:  System.Configuration.ConfigurationErrorsException: Request for ConfigurationPermission failed while attempting to access configuration section 'system.web/machineKey'. To allow all callers to access the data for this section, set section attribute 'requirePermission' equal 'false' in the configuration file where this section is declared. (machine.config line 142) at System.Web.Configuration.ProvidersHelper.InstantiateProvider(ProviderSettings providerSettings, Type providerType) at System.Web.Configuration.ProvidersHelper.InstantiateProviders(ProviderSettingsCollection configProviders, ProviderCollection providers, Type providerType) at System.Web.Security.Membership.Initialize() at System.Web.UI.WebControls.LoginUtil.GetProvider(String providerName) at System.Web.UI.WebControls.Login.AuthenticateUsingMembershipProvider(AuthenticateEventArgs e) at System.Web.UI.WebControls.Login.OnAuthenticate(AuthenticateEventArgs e) at System.Web.UI.WebControls.Login.AttemptLogin() at System.Web.UI.WebControls.Login.OnBubbleEvent(Object source, EventArgs e) at System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) at System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.login_aspx.ProcessRequest(HttpContext context) in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\99ea4fa6\8d15aaf2\App_Web_nsvlw4hx.24.cs:line 0 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)  
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any replies??????????????????

Have you tried the following

- Ensure any 64-bit IIS App Pools have "Enable 32-bit Apps" enabled
- Did you "Unblock" the zip file before extracting

IF you are asking for help on these matter please state the following for an easier diagnosis by us:

- OS Version
- IIS Version
- ASP.NET Version
- Using either VWD Express of Full VS 2008/10

Regards

I am posting to a hosting webserver and have this problem on about every server.  It is IIS 7 with SQL 2005 and medium trust security.  The entire admin system is unusable

Are you with Godaddy ? or which hosting company ?

by looking at your ERROR message it seems like it's a security issue, nopCommerce requires Full Trust Level and many features in nopCommerce doesn't work in Medium Trust,

It is better for you to use another hosting company that supported full trust.

Please take a look at this THREAD

This will give you an idea that Medium Trust Level is causing the main problem

Few hosting companies with full trust level are:

http://www.softsyshosting.com/

http://www.fortehosting.com/

http://www.webhost4life.com/

http://www.appliedi.net/