How to fix this error: "Label does not exist..."?

Question

question

sara S2 asked Nov 12 2019 at 12:04 PM sara S2 commented Nov 14 2019 at 9:58 AM

How to fix this error: "Label does not exist..."?

Hello,

I am trying to model the process of transporting items (boxes) from the rack to the port 'Queue3'. But when I run the model, I get an error message:

"FlexScript exception: Label property Type retrieved on /Rack1/Tote. Label does not exist. at MODEL:/Tools/GlobalLists/ItemList1>variables/fields/ItemType/expression".

I really don't know how to fix this, help me please !

model1.fsm

Software Version:

FlexSim 19.0.0

itemlist and processflow

model1.fsm (69.2 KiB)

______

Cookie preferences

Your privacy is important to us and so is an optimal experience. To help us customize information and build applications, we collect data about your use of this site.

May we collect and use your data?

Learn more about the Third Party Services we use and our Privacy Statement.

Strictly necessary – required for our site to work and to provide services to you

These cookies allow us to record your preferences or login information, respond to your requests or fulfill items in your shopping cart.

YES

Improve your experience – allows us to show you what is relevant to you

These cookies enable us to provide enhanced functionality and personalization. They may be set by us or by third party providers whose services we use to deliver information and experiences tailored to you. If you do not allow these cookies, some or all of these services may not be available for you.

YES

NO

Customize your advertising – permits us to offer targeted advertising to you

These cookies collect data about you based on your activities and interests in order to show you relevant ads and to track effectiveness. By collecting this data, the ads you see will be more tailored to your interests. If you do not allow these cookies, you will experience less targeted advertising.

YES

NO

Are you sure you want a less customized experience?

We can access your data only if you select "yes" for the categories on the previous screen. This lets us tailor our marketing so that it's more relevant for you. You can change your settings at any time by visiting our privacy statement

Your experience. Your choice.

We care about your privacy. The data we collect helps us understand how you use our products, what information you might be interested in, and what we can improve to make your engagement with Autodesk more rewarding.

May we collect and use your data to tailor your experience?

Explore the benefits of a customized experience by managing your privacy settings for this site or visit our Privacy Statement to learn more about your options.

Answer 1 · 2019-11-12T13:01:31Z

Joerg Vogel answered Nov 12 2019 at 1:01 PM sara S2 commented Nov 14 2019 at 9:58 AM

You get the exception, because you push the tote to the list in the Send To Port function of the Rack1. The tote has not the label Type nor any other label.

If you want to push the content of the tote onto the list, you can adjust the reference to push:

item.subnodes.toArray()

in the source code editor of the function.

push-tote-to-list.jpg (79.8 KiB)

push-tote-content-to-list.jpg (84.6 KiB)

· 4

sara S2 commented · Nov 12 2019 at 4:15 PM

Thank you for your reply.

I corrected the code, but I still get an error (in the attached two first files). I don't know how I should set the label ItemType to the token !

error.png

model1.fsm

Actually, I am wondering why in other model (attached below) the execution is performed without errors despite the usage of the code that you have mention in the first figure (push-tote-to-list.jpg). The only difference is that in this model, we use pallet instead of tote.

exp2.fsm

0 ·

error.png (350.0 KiB)

exp2.fsm (48.8 KiB)

model1.fsm (69.2 KiB)

tannerp sara S2 commented · Nov 12 2019 at 8:10 PM

Hi @sara S2,

In the example you sent called "exp2", the Process Flow logic is connected to lists and resources and it runs properly.

The other example, "model1", is not connected to any lists or resources, so the tokens can't pull items, acquire operators, or assign labels. Have you reviewed the Process Flow tutorials in the User Manual to learn how these PF activities work?

I think it would be beneficial to review some of those tutorials so that you can properly connect the activities in PF to the 3D.

0 ·

connected-list.png (7.6 KiB)

empty-list.png (6.9 KiB)

sara S2 tannerp commented · Nov 14 2019 at 9:58 AM

Thank you @tanner.p.

0 ·

tannerp sara S2 commented · Nov 12 2019 at 8:46 PM

This is nowhere near complete, but I've updated the model so far that it doesn't crash. Hopefully this makes it easier to work on it.

updated-labels-and-pf.fsm

0 ·

updated-labels-and-pf.fsm (69.9 KiB)

question