[GUI_tutorial.md] Change --force-version value in Harmonic tutorial to a supported value.

[mmmarinho]

📜 Documentation Fix

Replace

gz sim --force-version 8.0.0 shapes.sdf

by

gz sim --force-version 8 shapes.sdf

in the harmonic docs.

Summary

The command below, in the harmonic harmonic docs,

gz sim --force-version 8.0.0 shapes.sdf

outputs the following error in modern versions (such as 8.9.0 and 8.10.0)

Version error: I cannot find this command in version [8.0.0]

Checklist

• Signed all commits for DCO
• Updated documentation (as needed)

[azeey]

I tested this locally and it seems to work fine for me if you use the versions listed in --versions. So maybe what we need is an explanation that the version can be just the major version number or the exact number listed in --versions.

[azeey]

@mmmarinho there hasn't been any activity in a while. Are you planning to get back to this?

[mmmarinho]

Hi @azeey,

How you'd like to go about this? The smallest amount of modifications to make it work for a Harmonic installation would be to modify as I suggested earlier (8.0.0 becomes 8). This is compatible with the text just before it, namely

To ensure you're working with Harmonic, include the --force-version directive when starting up:

gz sim --force-version 8 shapes.sdf

If you want I can add an explanation that it would also work with the full version out of --versions. For instance, in addition to the change above, a note like so.

Note

The version specified to --force-version can be just the major version number or the exact number listed in --versions.

[azeey]

Changing the example to use just the major version number and adding the note sounds good. Thanks!

[mmmarinho]

@azeey: Docs seem to be building as we discussed.

[caguero]

Works for me, although it would be nice to change it in the rest of the Gazebo distributions as well (for consistency). E,g,: Fortress, Ionic, etc.

[azeey]

Looks like something was lost. I only see b9b2f90 which doesn't have the Note in the screenshot.