# atomsGUI does't show up after installing my toolbox

**URL:** <https://scilab.discourse.group/t/atomsgui-doest-show-up-after-installing-my-toolbox/1199>\
**Category:** Atoms packages\
**Created:** [June 30, 2026, 12:29am UTC](https://scilab.discourse.group/t/atomsgui-doest-show-up-after-installing-my-toolbox/1199 "2026-06-30T00:29:57Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![Hani](https://avatars.discourse-cdn.com/v4/letter/h/ba8739/32.png) [@Hani](https://scilab.discourse.group/u/Hani)\
**Post date:** [June 30, 2026, 12:29am UTC](https://scilab.discourse.group/t/atomsgui-doest-show-up-after-installing-my-toolbox/1199/1 "2026-06-30T00:29:57Z")

</div>

Hello,

I just updated one of my old toolboxes. When I load it manually using `loader.sce`, it works exactly as I expected. I zipped it and installed the zip-file locally using `atomsInstall()`. That worked. The toolbox itself is loaded and works as expected.

But when I start atomsGUI now, I get the error below. That doesn’t happen when I load the toolbox via `loader.sce` of course.

```auto
Startup execution:
  loading initial environment
at line 35 of function atomsVersionCompare ( C:\Program Files\scilab-2024.1.0\modules\atoms\macros\atoms_internals\atomsVersionCompare.sci line 55 )
at line 60 of function atomsVersionSort ( C:\Program Files\scilab-2024.1.0\modules\atoms\macros\atoms_internals\atomsVersionSort.sci line 76 )
at line 45 of function atomsCompatibleVersions ( C:\Program Files\scilab-2024.1.0\modules\atoms\macros\atoms_internals\atomsCompatibleVersions.sci line 61 )
at line 80 of function atomsGetAvailable ( C:\Program Files\scilab-2024.1.0\modules\atoms\macros\atoms_internals\atomsGetAvailable.sci line 132 )
at line 110 of function atomsGetLeftListboxElts ( C:\Program Files\scilab-2024.1.0\modules\atoms\macros\atoms_internals\atomsGetLeftListboxElts.sci line 131 )
at line 26 of function cbAtomsGui ( C:\Program Files\scilab-2024.1.0\modules\atoms\macros\atoms_gui\cbAtomsGui.sci line 40 )

atomsVersionCompare: Wrong value for input argument #1: This is not a valid version.

```

Atoms’s GUI doesn’t show up. But Atoms’ console commands are still working. I have to remove the tbx with `atomsRemove` and restart Scilab to get atomsGUI run again on 2023.1, 2024.1. On 2026.1 that is not enough. I have to delete `SCIHOME\.atoms\` and `SCIHOME\atoms` to get atomsGUI run again.

This error message above is from 2024.1.0 but I get the same result on 2023.1.0 and the current 2026.1.0. on Windows, Linux and macOS.

The error mentioned versions. The version entries in DESCRIPTION are:

```auto
Version: 2.0.0
ScilabVersion: >= 2023.0.0
Depends: ~ apifun any
 ~ xlreadwrite any

```

What can cause this issue?

Thanks in advance.

---

<div class="post-metadata">

**Author:** ![vincent.couvert](https://avatars.discourse-cdn.com/v4/letter/v/f4b2a3/32.png) [@vincent.couvert](https://scilab.discourse.group/u/vincent.couvert)\
**Post date:** [June 30, 2026, 10:13am UTC](https://scilab.discourse.group/t/atomsgui-doest-show-up-after-installing-my-toolbox/1199/2 "2026-06-30T10:13:52Z")

</div>

Hello @Hani

Can you execute the following code and check what `versions` contains?

```scilab
name = "YOUR TOOLBOX NAME"
load("SCI\modules\atoms\macros\atoms_internals\lib")
allpackages = atomsDESCRIPTIONget();
package_versions = allpackages(name);
package_versions_tab = getfield(1,package_versions);
package_versions_tab(1:2) = [];
versions=[];
for i=1:size(package_versions_tab,"*")
    versions = [versions ; package_versions_tab(i)];
end
versions

```

Best regards.

---

<div class="post-metadata">

**Author:** ![Hani](https://avatars.discourse-cdn.com/v4/letter/h/ba8739/32.png) [@Hani](https://scilab.discourse.group/u/Hani)\
**Post date:** [June 30, 2026, 3:52pm UTC](https://scilab.discourse.group/t/atomsgui-doest-show-up-after-installing-my-toolbox/1199/3 "2026-06-30T15:52:42Z")

</div>

Thanks for prompt reply, Vincent,

But when I run the code I get

```auto
at line 8 of executed file C:\Users\hi\Entwicklung\Scilab\check_version.sce

Undefined variable: versions

```

Do you mean something like that:

```auto
name = "dataint"
load("SCI\modules\atoms\macros\atoms_internals\lib")
allpackages = atomsDESCRIPTIONget();
package_versions = allpackages(name);
package_versions_tab = getfield(1,package_versions);
package_versions_tab(1:2) = [];
for i=1:size(package_versions_tab,"*")
    versions = [package_versions_tab(i)];
end
versions

```

Then `versions`is “1.2.0”.

* * *

The variables `package_versions`:

![grafik](https://global.discourse-cdn.com/free1/uploads/utc/original/2X/5/5b93a40a87fbc8b6c61f6782306468ec22a4c7be.png)

and `Package_versions_tab`:

```auto
 package_versions_tab = [1x3 string]

  "2.0.0" "1.2.2-rev" "1.2.0"

```

Hope that helps.

---

<div class="post-metadata">

**Author:** ![vincent.couvert](https://avatars.discourse-cdn.com/v4/letter/v/f4b2a3/32.png) [@vincent.couvert](https://scilab.discourse.group/u/vincent.couvert)\
**Post date:** [June 30, 2026, 4:10pm UTC](https://scilab.discourse.group/t/atomsgui-doest-show-up-after-installing-my-toolbox/1199/4 "2026-06-30T16:10:49Z")

</div>

My bad, I edited the script in my previous post.

However, the problem is not clear. Your issue comes from the `1.2.2-rev` version which is not recognized as a version number by ATOMS. Try using `1.2.2-1` instead.

Best regards.

---

<div class="post-metadata">

**Author:** ![Hani](https://avatars.discourse-cdn.com/v4/letter/h/ba8739/32.png) [@Hani](https://scilab.discourse.group/u/Hani)\
**Post date:** [June 30, 2026, 8:03pm UTC](https://scilab.discourse.group/t/atomsgui-doest-show-up-after-installing-my-toolbox/1199/5 "2026-06-30T20:03:25Z")

</div>

Thank you. I will try it.

---

<div class="post-metadata">

**Author:** ![Hani](https://avatars.discourse-cdn.com/v4/letter/h/ba8739/32.png) [@Hani](https://scilab.discourse.group/u/Hani)\
**Post date:** [July 7, 2026, 10:38am UTC](https://scilab.discourse.group/t/atomsgui-doest-show-up-after-installing-my-toolbox/1199/6 "2026-07-07T10:38:51Z")

</div>

So, after I diabled the version with the wrong version number (1-2.2- **rev** ) from ATOMS and it removed the version from the repository (after a week) it works.That was the problem. No problems with atomsGUI anymore.

Thank you, again, Vincent.