I have a PWA in SharePoint mode. In SP mode, I get the ugly "This Web Part was unable to load." Unfortunately, this work around only works for PWA in Project Server mode. Hopefully this bug is resolved in Project Server 2013 SP1.

Dear,
When i try to add the "My Task" Web part in My site then it will gives the below error.

"Server Error in '/' Application.

Object reference not set to an instance of an object.

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.NullReferenceException: Object reference not set to an instance of an object.

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:


[NullReferenceException: Object reference not set to an instance of an object.]
Microsoft.Office.Server.WorkManagement.UI.AWIOPUtilities.GetSharedComponentManagerInitializationScript(Page page) +158
Microsoft.Office.Server.WorkManagement.UI.TaskListControl.GetTaskListInitializationScript(Page page, String clientId, String timelineDataSourceId, Boolean hidden) +30
Microsoft.Office.Server.WorkManagement.UI.TaskListControl.OnLoad(EventArgs e) +104
System.Web.UI.Control.LoadRecursive() +94
System.Web.UI.Control.AddedControl(Control control, Int32 index) +728
Microsoft.Office.Server.WorkManagement.UI.TaskListWebPart.CreateChildControls() +240
System.Web.UI.Control.EnsureChildControls() +188
System.Web.UI.Control.PreRenderRecursiveInternal() +72
System.Web.UI.Control.PreRenderRecursiveInternal() +239
System.Web.UI.Control.PreRenderRecursiveInternal() +239
System.Web.UI.Control.PreRenderRecursiveInternal() +239
System.Web.UI.Control.PreRenderRecursiveInternal() +239
System.Web.UI.Control.PreRenderRecursiveInternal() +239
System.Web.UI.Control.PreRenderRecursiveInternal() +239
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4089

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18446"

What the solution?