Server Error in '/Default' Application.
Hello, all! I am new to Sitefinity 6.1, and I seem to be having trouble
creating a new page. I can navigate to the new page section, but when I
try to add content to a widget I get the following error:
Server Error in '/Default' Application.
Value cannot be null.
Parameter name: source
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.ArgumentNullException: Value cannot be null.
Parameter name: source
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:
[ArgumentNullException: Value cannot be null.
Parameter name: source]
System.Linq.Enumerable.Select(IEnumerable`1 source, Func`2 selector) +671
Telerik.Sitefinity.Data.ManagerExtensions.GetSiteProviders(IManager manager, Guid siteId) +307
Telerik.Sitefinity.Data.ManagerBase`1.GetContextProviders() +68
Telerik.Sitefinity.Web.UI.ProvidersSelector.get_Providers() +192
Telerik.Sitefinity.Web.UI.ProvidersSelector.OnPreRender(EventArgs e) +50
System.Web.UI.Control.PreRenderRecursiveInternal() +134
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Control.PreRenderRecursiveInternal() +204
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6878
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272
Any help with this problem would be greatly appreciated, thank you!
Hello Nicole,
People have reported similar errors, which turned out to be caused by some misconfigured elements.
I presume you're using a trial version, correct? Which edition are you trying out - is it Standard, Professional or other?
How many pages do you currently have and does this error occur with only one of them or all?
Information about what widgets you have on that page would help, as well as if you have set any permissions over them.
Regards,
Grisha 'Greg' Karanikolov
Telerik
Hello Grisha,
I recently found my problem and have resolved this issue.
Thank you for your help,
Nicole.
Hi Nicole,
Could you share where the problem was?
Regards,
Grisha 'Greg' Karanikolov
Telerik
Hi Grisha,
I had selected the incorrect database when setting up the project. It's always the small things.
Thank you again for your help,
Nicole.
Hi,
I am having the same error while trying to add any content and I have given the correct database name.
Please help!
Thanks,
Aditya
Hi Aditya,
In order for me to be able to provide a good solution, I'd need to know more about your project and how to reproduce the problem.
What Sitefinity version are you running and what edition? Are you running this through IIS or through the built-in server inside the project manager? Does this error occur on one specific page or over all of them? Did this error start occurring at some specific moment or was it there since you installed Sitefinity?
Looking forward to your reply!
Regards,
Grisha 'Greg' Karanikolov
Telerik