Known issue after you install Update Rollup 2

When you publish a workflow in Microsoft Dynamics CRM 4.0 after you install Update Rollup 2, you may receive the following error message:

The selected workflow has errors and cannot be published. Please open the workflow, remove the errors and try again.

To resolve this issue, open the Microsoft CRM Web site Web.config file in a text editor such as Notepad, and then add the following lines to the authorizedTypes section:

<authorizedType Assembly="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.Globalization" TypeName="CultureInfo" Authorized="True"/>
</authorizedTypes>