WCF - Error 500.21 Handler "svc-Integrated" has a bad module "ManagedPipelineHandler" in its module list"

If you  see this error you haven't installed the prerequisites for ASP.NET 4.

 - run "aspnet_regiis.exe -i" in VS 2010 command prompt

CRM 2011 : The Sandbox SDK Listener failed to start. Source: CrmAsyncService.exe

uninstall the last roll-up (ex: roll-up 13)  and this will solve the problem.

Memory gates checking failed because the free memory is less than 5% of total memory

The easiest way just add this into your web.config

<serviceHostingEnvironment minFreeMemoryPercentageToActivateService="0" />

CRM importing error: you don't have the necessary permissions to change the domain login name for this user

The cause was that the crm application pool account needs read/write access to this folder on the CRM server.

C:\\Program Files\Microsoft Dynamics CRM\CustomizationImport

Service Module in CRM 2011

http://www.powerobjects.com/blog/2010/07/30/service-scheduling-in-dynamics-crm-part-1/

http://www.dynamicscrmpros.com/service-scheduling-in-microsoft-dynamics-crm-2011/

http://www.powerobjects.com/blog/2010/07/30/service-scheduling-in-dynamics-crm-part-1/

Error “Unable to obtain DNS hostname of Active Directory domain controller with ntdsa object name..” when opening CRM Deployment Manager

http://weblogs.asp.net/pabloperalta/archive/2011/11/30/error-unable-to-obtain-dns-hostname-of-active-directory-domain-controller-with-ntdsa-object-name-when-opening-crm-deployment-manager.aspx

CRM 2011:The specified record type does not exist in microsoft dynamics crm

It appears your sitemp has reference to entity not found.

"contains reference to entity new_tribute but that entity was not found in the metadata cache"

go to SiteMap then delete this entities and update sitemap then it will work.