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worflow error: object reference not set to an instance of object

Matt Taylor
I'm attempting to copy/modify a worflow from an existing functioning workflow and recieve the message Object reference not set to an instance of an object.' in activity 1.42: Assign'.

 

My xaml is here https://www.dropbox.com/s/3q6uv7tr1rpobow/Locate_a_Trail_HTML5.xaml?dl=0 _img_ alt="Error Message" src="https://latitudegeo--c.na53.content.force.com/servlet/rtaImage?eid=906f2000000fxj7&feoid=Body&refid=0EMf2000000kAQu" _/_img_

 

I thought i had correctly changed everything, but must be missing something.  If interested the workflow is available from the I Want to Menu here (https://map.co.clear-creek.co.us/HTML5Viewer/?viewer=recreation#) . Any ideas??

 

Thanks,

 

Matt
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Comments

6 comments

Date Votes
  • Dan Giersz
    I would guess the output of the form is supposed to be trail_result instead of argTrail.
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  • Matt Taylor
    Dan, thanks for the response.  However now i am getting "token required" message.  Any ideas?
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  • Dan Giersz
    Looks like the query in your form is missing the token.
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  • Matt Taylor
    The Token argument has a variable "service_token".  Just like the working workflow.  I'll be honest i'm not sure how it grabs the token from the service.
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  • Dan Giersz
    The workflow from your dropbox link did not have the token parameter set in the form's query.

     

    If your copy does have that set, then I would confirm the credentials used for the GetMapServiceInfo are allowed access to the service you query in the form.
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  • Matt Taylor
    I did eventually get the workflow running properly by hardcoding the Map Service Id.  Thanks Dan for your help.
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