topic Re: OptQuest Error - A variable name has been duplicated in FlexSim Forum

OptQuest Error - A variable name has been duplicated

ozawa_shinya — Fri, 05 Aug 2022 03:42:51 GMT

[ FlexSim 22.0.4 ]

Hi,

OptQuest Error occures in the following model, OptQuestError-A_variable_name_has_been_duplicated.fsm in the FlexSim Cloud.

The error message said it's a variable name problem, but I don't think so.

What does this error mean?

Thanks in advance

Re: OptQuest Error - A variable name has been duplicated

JordanLJohnson — Fri, 05 Aug 2022 14:50:33 GMT

This is a bug. I will add it to the dev list to get it fixed. It happens because OptQuest sees a sequence as many variables instead of one. So FlexSim generates a name for each of the sequence values. Right now, it generates those names by concatenating an index with the parameter name. So for Sequence14, it generates:

Sequence141
Sequence142
...
Sequence1410
Sequence1411
...

And for Sequence141, it generates:

Sequence1411 (which duplicates the 11th value from the previous sequence)
Sequence1412
...

Until this bug is fixed, you'll have to avoid this bug by ensuring that if you have multiple sequence parameters, that their names don't end in a digit (1-9).

Re: OptQuest Error - A variable name has been duplicated

JordanLJohnson — Fri, 05 Aug 2022 14:58:20 GMT

Or you could use leading zeros in your parameter names: Sequence041, Sequence141. Again, that's just a workaround until the bug is fixed.

Re: OptQuest Error - A variable name has been duplicated

Jeanette_Fullmer — Wed, 10 Aug 2022 16:27:06 GMT

Hi @Shinya O, was Jordan Johnson's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

If we haven't heard back from you within 3 business days we'll auto-accept an answer, but you can always unaccept and comment back to reopen your question.

Re: OptQuest Error - A variable name has been duplicated

ozawa_shinya — Mon, 20 Feb 2023 01:16:29 GMT

Is this bug fixed?

Re: OptQuest Error - A variable name has been duplicated

Jeanette_Fullmer — Tue, 21 Feb 2023 21:33:18 GMT

Hello @Shinya O,

This was fixed in 22.0.7

Re: OptQuest Error - A variable name has been duplicated

ozawa_shinya — Wed, 22 Feb 2023 00:13:39 GMT

Thank you for your information.

Re: OptQuest Error - A variable name has been duplicated

maryamh11 — Wed, 12 Jun 2024 20:37:59 GMT

Hi @Jeanette F

I'm using version 24.1.0 and also got this error (A variable name has been duplicated). my variables had 1-9 at the end, i changed them to something alphabetical and the error is gone.

Re: OptQuest Error - A variable name has been duplicated

Jeanette_Fullmer — Mon, 17 Jun 2024 16:09:12 GMT

Hello @Maryam H2,

We were not able to replicate this issue in 24.1.0. Could you provide a sample model that demonstrates this issue?

Re: OptQuest Error - A variable name has been duplicated

maryamh11 — Tue, 18 Jun 2024 21:49:51 GMT

@Jeanette F i don't know if i can create a sample modle for this. Can we meet instead?

Re: OptQuest Error - A variable name has been duplicated

Jeanette_Fullmer — Fri, 21 Jun 2024 13:59:18 GMT

Hello @Maryam H2,

Yes, I emailed you times that I could meet to go over your model. We can discus this at that time as well.