UWL error on Netweaver EP6 Stack12

[Former Member]

Dear UWL experts

I have a problem with the UWL.

I have installed a Netweaver 04 EP6 Stack 12 – Standard installation through the rapid installer. I have no SAP backend systems connected and all I need to use is the standard task list feature that the UWL offers.

Every time I try to create a simple task I receive the error message that I have listed below.

com.sap.workflow.util.WFTask.invokeOperation: more than one operation signature (for operation 'setAssignees') matches arguments passed

I have not configured any specific settings under the UWL administration. I have just added the standard UWL iview to my workset. Shouldn’t the standard UWL iview work without any further customization?

Thanks in advance

Cheers

John

[Former Member · Accepted solution]

Hi John,

Have you read it ?

http://help.sap.com/saphelp_nw04/helpdata/en/e5/fc550f79ed4131a63c540cddbfe7be/frameset.htm

Prerequisites

Content Management 6.0 is installed, though UWL also works without Content Management. See SAP note 702255 for details.

Each connected SAP R/3 System has the following requirements:

· Workplace Plug-In 6.0 is installed

· Connection to the SAP Internet Transaction Server (ITS)

Each user is:

· Known to all connected SAP R/3 Systems as per role requirement (make sure that there is one-to-one mapping between the portal user and the backend user )

· Authorized for RFC access to function group SWK1 and transaction SWK1

Patricio.

Message was edited by: Patricio Garcia

[Former Member · Accepted solution]

Hi Patricio.

Yes I have seen it. But I have several other standard installations working with a simple Task list without any R3 backend installed.

I have tried to add Stack 13 but still the same error.

I have read the Help note, and can see that the R3 connection should be created, but I thought that this was only necessary for advanced workflows, since it works on other test installations

Kind regards

John

[Former Member · Accepted solution]

Please try this, if it does not work or something is missing, please let us know:

There could be something wrong with the installation. check the following:

1. check if the workflow templates are available. you can do this by going to:

Content Administration->Workflow Content->Workflow Templates. Check if the "QuickTask" template is listed here.

2. check if the task object is cofigured. Go to

http://localhost:port/irj/servlet/prt/portal/prtroot/PortalAnywhere.Go

Search for the portal app

com.sap.workflow.apps

Click "Go" for the portal application "BusinessObject". Check if the "WFTask" is listed in the business objects.

[Former Member · Accepted solution]

Dear Shweta

Thanks for the reply. I have tested the two parts and both parts exist.

The workflow template has a status: "start event" and the WFTask exist.

You can se my settings in the following screenshoots:

http://webdata.dk/uwl/uwl1.jpg

http://webdata.dk/uwl/uwl2.jpg

http://webdata.dk/uwl/uwl3.jpg

http://webdata.dk/uwl/uwl4.jpg

Kind regards

John

[Former Member · Accepted solution]

Hi John,

I think one of your database tables is corrupted with a duplicate entry. Did you perform any version migration? Is there any chance I could take a look at your database?

Give me a call at 650-849-4060 at your convenience.

Thanks,

Neil

[Former Member · Accepted solution]

Hi Neil

Thanks for the reply. I am sorry but I can't provide you direct access to the portal server, but then gain maybe by use of webex session?!?.

Or cold you guide me through? If you are the brain then I could be the hands and eyes Or do you know which tables I should look for, because then I could send you a dB dump?

Thanks once again in advance.

Kind regards

John

[Former Member · Accepted solution]

Hi John,

Could you take a look at the table OBJCACHE_METAO? Prefix in SQL Server would be KMC_. Specifically, could you check to see if there are two entries with OPERATION_NAME/METHOD_NAME of "setAssignees"?

Thanks,

Neil

[Former Member · Accepted solution]

Hi Neil

You were absolutely right. There are double entries for each item in the KMC_OBJCACHE_METAO table.

I have tried to delete the double entries but it’s not allowed though the enterprise manager. Please have a look at the “attached” screenshot (http://webdata.dk/uwl/uwl5.jpg).

Do you have any ideas on how to delete this part? And could there be a lot of other tables that this table refers to with duplicated entries as well?

Thanks in advance

Kind regards

John

[Former Member · Accepted solution]

Hi John,

Could I get some information on how this might have happened? The migration utility should not have had this effect under any circumstance - is it possible that a Netweaver installation was somehow halted before completion and then re-started? How was the installation done?

I believe if you stop the SAPJ2EE server, you should be able to delete these entries. However, could you generate a CSN for the EP-BC-JWF queue about this problem? Since this appears to be a situation particular to your system, we can take a closer look at your other tables and determine if any others are corrupted.

Thanks,

Neil

[Former Member · Accepted solution]

Hi Neil

I have not created any migration only a standard portal installation by use of the SAP rapid installer based on stack 12. Afterwards I have upgraded to stack 13 and then 14, but the error has occurred since stack 12. The installation failed by I continued by use of starting SAP inst and select “continue old installation”.

I have looked a several other dB and no duplicates exist here. I have another problem when setting user rights to KM folders, it keeps resetting each time I activate the save button. I think that duplicate entries can be the root for this problem but I can’t locate the table on where user rights are stored.

I have tired to stop the SAP application but still I am not allowed to delete the duplicates.

I’ll create an OSS note to SAP and hope they can provide a solution on how to delete these duplicates.

Thanks for all your help and guidelines

Kind regards

John Stubbe