Web Part Error

1
votes

One of the SharePoint out-of-the box (created with SharePoint tools and no custom code) web parts has suddenly stopped working, offering only this information to debug:

Web Part Error: A Web Part or Web Form Control on this Page cannot be displayed or   imported. The type could not be found or it is not registered as safe.

I am lost at to why all the other parts (Custom code and just content) seem to load, but just this one is looking for type/dll throwing the exception.

Where to start debugging and what pieces of SharePoint I have to learn now?

I checked the log on where the app is hosted and found no issues directly pointing to the issue.

Not many issues at all except: Fialed to compile audiences. Can this be an issue for a text.

1
c#sharepointweb-parts
Did you check the logs? Sp2007 "C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\LOGS", Sp2010 "C:\Program Files\Common Files\Microsoft Shared\web server extensions\14\LOGS" – Eric Herlitz
Was it created with SharePoint Designer? More information about the web part would probably be helpful. – Kit Menke
@dexter: Why is the question tagged with C#? Is it a data view web part? Data form web part? What is the web part's data source? Any other info you can include will help. Also, have you tried recreating the web part? – Kit Menke

1 Answers

1
votes

While adding custom web part to a sharepoint site In the Web.config file, add the following element under the SafeControls element:

<SafeControl Assembly="AssemblyName, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" Namespace="NamespaceName" TypeName="*" Safe="True" />

For more refer this link http://support.microsoft.com/kb/939306