Profile Task Sequence Error

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Miguel Pereira asked Jul 7, '21 Eric M commented Jul 19, '21

Profile Task Sequence Error

Hi,

In a task sequence where the task executors have to load and unload Bags i'm having a Profile Task Sequence Error when i need to load the "2nd time".

When both Task Executors do the first load and unload it's okay but when they reach the load for the 2nd time after a "More Items to Load" = Yes; this prompt error appears:

How can i solve it?

Aeroporto.fsm

Thanks, Miguel Pereira.

Software Version:

FlexSim 21.0.5

tasksequence task executer flowitem task executor

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aeroporto.fsm (2.5 MiB)

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Eric M commented · Jul 19, 2021 at 08:54 PM

Hi @Miguel Pereira were you able to find a solution to your question? If so, can you accept Roi's answer or post a new answer with the solution? Thanks

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Answer 1 · 2021-07-07T09:50:34Z

Roi Sánchez answered Jul 7, '21 Miguel Pereira commented Jul 8, '21

Hi @Miguel Pereira, you are trying to load and unload continuously the same item referenced on 'token.BagsIn' label. As Task Executers are unloading this 'token.BagsIn' item in a sink which is called 'ZonaDescarga', these items are destroyed just after the unload. As a result, in the second load &unload cycle, as they are trying to load the same item, the error comes up.

I do not know exactly what you are trying to do but I guess you should have an array of items in order to load and unload one after another.

· 8

Miguel Pereira commented · Jul 07, 2021 at 10:17 AM

I'm trying to load those groups of 40-60 bags but 15 at a time, so each task executors should go there 2 or 3 times.

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Miguel Pereira commented · Jul 08, 2021 at 08:51 AM

i've made some changes and as you can see i'm using the array in the run sub flow, but it's still not working. I'm not sure if i understood how to do the array but i've did the same way i've learn on a tutorial.

Aeroporto.fsm

Thanks.

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aeroporto.fsm (2.5 MiB)

Roi Sánchez Miguel Pereira commented · Jul 08, 2021 at 11:17 AM

@Miguel Pereira, if you already create 1 token per baggage to load & unload you don´t need to check if there are more things to load.

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aeroporto-foro.fsm (2.5 MiB)

Miguel Pereira Roi Sánchez commented · Jul 08, 2021 at 11:56 AM

It doesn't work if i take that decide off because i'm incrementing the label after the finish and it goes to another Queue. I'll try Joerg solution.

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Joerg Vogel Miguel Pereira commented · Jul 08, 2021 at 11:27 AM

You work with the index variable creationRank to address the fields of an array. That is OK, but an Array keeps empty fields still as fields and this causes that they are counted as content when you read the length of an array. Once the items are processed, you must empty the array, by assigning an empty array. You can also work with pop() or shift() methods to return a value of an field and erase it from an array, when you unloads finally the items and before they reach a sink.

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