NoAssociatedProcessAreaException when creating new work item

Hi,

I'm getting NoAssociatedProcessAreaException with message "The 'Filed Against' category does not have a team area associated with it" when creating a new work item.

I checked my filed against category and it did associate with a team area.

Any idea what may cause this error?

Here is my code to create the work item:

IWorkItemType workItemType = workItemClient.findWorkItemType(projAreaHandle, typeIdentifier, monitor);
IWorkItemHandle handle = workItemClient.getWorkItemWorkingCopyManager().connectNew(workItemType, monitor);
WorkItemWorkingCopy wc = workItemClient.getWorkItemWorkingCopyManager().getWorkingCopy(handle);
IWorkItem workItem = wc.getWorkItem();
ICategory category = getCategory(...); // method that return ICategory.
if (category != null)
{
// I checked that the category is associated with a team area
workItem.setCategory(category);
}
workItem.setCreator(repo.loggedInContributor());
wc.save(null);

Failed with NoAssociatedProcessAreaException when saving the work item.

Caused by: com.ibm.team.workitem.common.model.NoAssociatedProcessAreaException: The 'Filed Against' category does not have a team area associated with it
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.ibm.team.workitem.common.internal.rcp.dto.impl.SaveResultDTOCustomImpl.getException(SaveResultDTOCustomImpl.java:88)
at com.ibm.team.workitem.common.internal.rcp.dto.impl.SaveResultDTOCustomImpl.getStatus(SaveResultDTOCustomImpl.java:48)
at com.ibm.team.workitem.common.internal.rcp.dto.impl.MultiSaveResultDTOCustomImpl.getStatus(MultiSaveResultDTOCustomImpl.java:63)
at com.ibm.team.workitem.common.internal.util.Utils.checkSaveResult(Utils.java:276)
at com.ibm.team.workitem.client.internal.WorkItemWorkingCopyRegistry.saveWorkItems(WorkItemWorkingCopyRegistry.java:1642)
at com.ibm.team.workitem.client.internal.WorkItemWorkingCopyRegistry.saveAffected(WorkItemWorkingCopyRegistry.java:1538)
at com.ibm.team.workitem.client.internal.WorkItemWorkingCopyRegistry.save(WorkItemWorkingCopyRegistry.java:1439)
at com.ibm.team.workitem.client.internal.WorkItemWorkingCopyRegistry.save(WorkItemWorkingCopyRegistry.java:1410)
at com.ibm.team.workitem.client.internal.WorkItemWorkingCopyManager.save(WorkItemWorkingCopyManager.java:115)
at com.ibm.team.workitem.client.internal.WorkItemWorkingCopyImpl.save(WorkItemWorkingCopyImpl.java:221)
.
.
.

Thanks alot for the help!!