Install error nopCommerce v2.10

when i upload all files in my host and i try to open my website to run installation i get this error:

Server Error in '/' Application.

Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.

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.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.

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.

Stack Trace: 


[ReflectionTypeLoadException: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.]
   System.Reflection.RuntimeModule.GetTypes(RuntimeModule module) +0
   System.Reflection.RuntimeModule.GetTypes() +4
   System.Reflection.Assembly.GetTypes() +78
   Nop.Core.Plugins.PluginManager.Initialize() in PluginManager.cs:131

[Exception: Could not initialise plugin folder]
   Nop.Core.Plugins.PluginManager.Initialize() in PluginManager.cs:146

[Exception: Could not initialise plugin folder]
   Nop.Core.Plugins.PluginManager.Initialize() in PluginManager.cs:154

[InvalidOperationException: The pre-application start initialization method Initialize on type Nop.Core.Plugins.PluginManager threw an exception with the following error message: Could not initialise plugin folder.]
   System.Web.Compilation.BuildManager.InvokePreStartInitMethods(ICollection`1 methods) +423
   System.Web.Compilation.BuildManager.CallPreStartInitMethods() +306
   System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +591

[HttpException (0x80004005): The pre-application start initialization method Initialize on type Nop.Core.Plugins.PluginManager threw an exception with the following error message: Could not initialise plugin folder.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9013676
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +97
   System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +258

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1

Someone can help me??
Thanks

https://www.nopcommerce.com/boards/t/10737/nopcommerce-20-deployment-error.aspx

thanks for the help ...
i've read all the suggestion in the topic but now i get another error:

Server Error in '/' Application.

Access to the path 'D:\Inetpub\webs\mywebsite\Plugins\bin\Nop.Plugin.DiscountRules.BillingCountry.dll' is denied.

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.UnauthorizedAccessException: Access to the path 'D:\Inetpub\webs\mepishopit\Plugins\bin\Nop.Plugin.DiscountRules.BillingCountry.dll' is denied. 

ASP.NET is not authorized to access the requested resource. Consider granting access rights to the resource to the ASP.NET request identity. ASP.NET has a base process identity (typically {MACHINE}\ASPNET on IIS 5 or Network Service on IIS 6 and IIS 7, and the configured application pool identity on IIS 7.5) that is used if the application is not impersonating. If the application is impersonating via <identity impersonate="true"/>, the identity will be the anonymous user (typically IUSR_MACHINENAME) or the authenticated request user. 

To grant ASP.NET access to a file, right-click the file in Explorer, choose "Properties" and select the Security tab. Click "Add" to add the appropriate user or group. Highlight the ASP.NET account, and check the boxes for the desired access.

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.

Stack Trace: 


[UnauthorizedAccessException: Access to the path 'D:\Inetpub\webs\mywebsite\Plugins\bin\Nop.Plugin.DiscountRules.BillingCountry.dll' is denied.]
   System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) +9718606
   System.IO.File.InternalCopy(String sourceFileName, String destFileName, Boolean overwrite) +9556645
   System.IO.File.Copy(String sourceFileName, String destFileName, Boolean overwrite) +55
   Nop.Core.Plugins.PluginManager.InitializeMediumTrust(FileInfo plug, DirectoryInfo shadowCopyPlugFolder) in PluginManager.cs:332
   Nop.Core.Plugins.PluginManager.PerformFileDeploy(FileInfo plug) in PluginManager.cs:252
   Nop.Core.Plugins.PluginManager.Initialize() in PluginManager.cs:116

[Exception: Could not initialise plugin folder]
   Nop.Core.Plugins.PluginManager.Initialize() in PluginManager.cs:146

[Exception: Could not initialise plugin folder]
   Nop.Core.Plugins.PluginManager.Initialize() in PluginManager.cs:154

[InvalidOperationException: The pre-application start initialization method Initialize on type Nop.Core.Plugins.PluginManager threw an exception with the following error message: Could not initialise plugin folder.]
   System.Web.Compilation.BuildManager.InvokePreStartInitMethods(ICollection`1 methods) +423
   System.Web.Compilation.BuildManager.CallPreStartInitMethods() +306
   System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +591

[HttpException (0x80004005): The pre-application start initialization method Initialize on type Nop.Core.Plugins.PluginManager threw an exception with the following error message: Could not initialise plugin folder.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9013676
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +97
   System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +258

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1

and if i look in the Plugins\bin\ folder i don't have the Nop.Plugin.DiscountRules.BillingCountry.dll

The bin folder is empty ...


Any suggestion for this problem??

https://www.nopcommerce.com/boards/t/11511/access-error-nopplugindiscountrulesbillingcountrydll.aspx