Tutorial 1.1 List and resource - errormessage

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Håkon L asked Nov 24, '22 Håkon L edited Nov 24, '22

Tutorial 1.1 List and resource - errormessage

Hi! I need some help in finding out what I have done wrong with regards to the tutorial 1.1 Use of list and resource - I find it hard to ealuate and understand some of the errormessages I get at times.

The first exception:
time: 36.199861 exception: Label property pulledItem retrieved on token "id:2". Label does not exist. At activity Transport Tasks/Assign Labels: Destination in process flow "OperatorTasks".

So I can see the exception happens at the activity "Transport tasks/assign labels" and I think it happens to the second token (the token with id 2.0) which runs through the activity(?) Is the label "token.pulleditem" correctly set up?

Second exception:
time: 36.199861 exception: FlexScript exception: Property destination not available for Variant with value NULL. Must by a treenode type Variant. at MODEL:/Tools/ProcessFlow/OperatorTasks/Assign Labels: Destination>labels/2/2

A destination value has been set to null(?) I really don't know how to enterprate this exception...

I've added my file.
In advance - thanks!

1.1 Use a list and a resource.fsm

Software Version:

FlexSim 22.2.2

labels exception error tutorial

11-use-a-list-and-a-resource.fsm (47.9 KiB)

Answer 1 · 2022-11-24T12:36:47Z

Jason Lightfoot answered Nov 24, '22 Håkon L edited Nov 24, '22

Two things:

You are overwriting the FlowItem label in "Assign Labels: Destination" - remove this label - it's already being added in the "Create Token in Transport Tasks" activity.
Use itemDestination as the label field. You are referencing token.destination, not token.itemDestination.

· 1

Håkon L commented · Nov 24, 2022 at 12:48 PM

Aha, I removed the label from Assign Labels: Destination, and the model works a little longer as a result. And i corrected the value you wrote at "unload Item at Destination". Thank you! It works!

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