The group specified does not exist in the database [error]

Hello there!

When I try to follow the instruction I get stuck at step 5.

When I try to select the nodes I get this message "The group specified does not exist in the database.":

Where should I look for the error?

___

Additional info:

Tutorial: https://2021.help.altair.com/2021/hwsolvers/os/topics/solvers/os/extended_surface_heat_transfer_fin_r.htm#extended_surface_heat_transfer_fin_r

Community-Pasted-Attachment-1674037643032.png

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English

HyperMesh

OptiStruct

v12.0.1

Accepted answers

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PaulAltair

It looks like you are trying to 'add' to an existing interface (that doesn't exist yet), rather than creating a new one? (change to the 'create' button instead of add), I just went through the steps as written in the tutorial and had no issue with this step in v2022. Also. From your screenshot I can see you are using HM 12.0? This type of analysis wasn't supported until later releases of v12 I don't think, so you may run into issues later anyway? (this is all from a very long time ago so I may be misremembering) note in tutorial says:

I would really recommend updating to a newer version, since v12 is now 8 releases ago!

PaulAltair

It looks like you are trying to 'add' to an existing interface (that doesn't exist yet), rather than creating a new one? (change to the 'create' button instead of add), I just went through the steps as written in the tutorial and had no issue with this step in v2022. Also. From your screenshot I can see you are using HM 12.0? This type of analysis wasn't supported until later releases of v12 I don't think, so you may run into issues later anyway? (this is all from a very long time ago so I may be misremembering) note in tutorial says:

I would really recommend updating to a newer version, since v12 is now 8 releases ago!

completed files, if it helps

transient_heat.fem

transient_heat.h3d

Anna_22598

It looks like you are trying to 'add' to an existing interface (that doesn't exist yet), rather than creating a new one? (change to the 'create' button instead of add), I just went through the steps as written in the tutorial and had no issue with this step in v2022. Also. From your screenshot I can see you are using HM 12.0? This type of analysis wasn't supported until later releases of v12 I don't think, so you may run into issues later anyway? (this is all from a very long time ago so I may be misremembering) note in tutorial says:

I would really recommend updating to a newer version, since v12 is now 8 releases ago!

Thanks for your comment. I have already solved the problem, I actually did it in the wrong order. Unfortunately, I can't update the program as this is the only version available at my work. I have the latest version privately and there I have no problems. Thank you!