Hello,
First I want to say I have searched
this issue and found
related issues, but did not find an answer to my issue. However I am
hoping that someone will take a quick look at this issue and tell me I’ve
overlooked something. I keep coming back to this issue expecting to find
something I’ve missed, but after spending far too long without success I’m appealing to the forums.
I experience this issue in our
development environment, but not on my virtual machine. Both are set up the with
the root web containing a list called “Training” and a workflow called “Training
Validation.” I’ve added a button to the display form to kick-off the workflow.
Currently the workflow just logs to the history that it fired. It works
flawlessly within my VM, but in our dev environment I get this error:
Server was unable to process request. ---> Cannot find
list. Parameter name: listName Actual value was Training.
Special note, I can start the
workflow from the list item by going through the workflows, selecting the
workflow and clicking ‘Start’. The whole point of this effort however is to not
require the user to do this to start the workflow.
In my experience, you get this
error under two circumstances.
First, I’ve seen this error when
the .nwf file was created on a list and then the list is changed. That is not
the case here and I’ve recreated the workflow in the dev environment to ensure
the “Training Validation” workflow was publishable (i.e. didn’t have issues
because columns didn’t match). That’s also why the current workflow has been
simplified to just log the workflow firing.
Second, as with the link above
sometimes the service being called isn’t at the same level as the list. When I look at what I’m doing though, I don’t
see that being the issue (I hope I’m wrong). Here’s how I create my service
(this is inside the button-click event on the item display form):
NintexWorkflowWS nintexWebService = newNintexWorkflowWS(); //Start with current
web url string webServiceUrl = SPContext.Current.Web.Url; //make sure Web
Service Url is well formed if (!webServiceUrl.EndsWith("/")) webServiceUrl += "/"; //append the Nintex
Web Service Url webServiceUrl += "_vti_bin/nintexworkflow/workflow.asmx"; nintexWebService.Url = webServiceUrl; nintexWebService.Credentials =
GetNintexRunTimeCredentials(); nintexWebService.StartWorkflowOnListItem(itemId,
listName, validationWorkflowName, ""); |
A note about that last
line, itemId gets Convert.ToInt32(Request.QueryString["ID"]), listName gets SPContext.Current.List.Title, which
comes back as “Training”. Finally, validationWorkflowNameis a
private string that returns"Training Validation".
I’ve gone so far as to grab the SPContext.Current.Web and
have it log every list contained in the web when the call fails with the error
saying it can’t find the list called Training. Training is listed.
