JF Delannoy 

JF Delannoy said:

A message says I have no internet access ("Cannot connect to the cloud").

This has nothing to do with the appstore.

JF Delannoy said:

One of the effects is: I cannot access the AppStore to get the Deepl plugin (listing says empty).

This...

... only shows you don't have a version of the app you are attempting to manually install that is supported on the version of Studio you have.  You seem to have 2021 - 16.2.9.9198.  The latest 2021 is Studio 2021 - 16.2.12.9338.  Perhaps you can tell us which app you are attempting to install and where you downloaded it from?  I downloaded the 2021 version for DeepL and it should install in your version of Studio, so maybe you downloaded a different one altogether?

JF Delannoy said:

A suggestion in the Community site recommends to erase a .bin file after making sure hidden files are listed. I have no such file
(in C:\Users\jfd\AppData\Roaming\Trados\Trados Studio\Studio17).

If you don't have this then it would match what you show in that screenshot.  You do not seem to have 2022 installed at all.  For example, if I double click the 2021 installer for DeepL I see this:

Are you sure you have actually installed 2022?

Maybe also check you have unhidden your hidden files/folders:

www.howtogeek.com/.../

Then see if you can see that folder?

JF Delannoy said:

If I go separately to the appstore  via a browser, and download the plugin in its compatible version (6.0.1.0), the installer sees my Studio 2021 but not my Studio 2022.

Same as above. 

I do have Studio 2022. It runs.

I rebooted twice.

You'd expect it to be recognized, by any relevant program or plugin.

It is listed among the programs as seen from the Control Panel.

Why is it not listed by te plugin installer?

NB I did not remove Studio 2021 so far.

JF Delannoy 

JF Delannoy said:

I do have Studio 2022. It runs.

Then you absolutely should be able to see this folder:

C:\Users\jfd\AppData\Roaming\Trados\Trados Studio\Studio17

It is impossible for this not to be there if you can run 2022.

JF Delannoy said:

Why is it not listed by te plugin installer?

I'll hazard a guess that you installed an old version of the plugin installer and this is running in preference to the one that is installed with 2022.  Guessing a bit, but you can see that my plugin installer application is from 2022 by the icon:

Yours is an old one:

This could be part of the problem as an old one might not pick this up.

Why don't you use the integrated appstore in Trados Studio to find and install your plugins?  Here, from either the quick link at the top left of Trados Studio, or from the RWS AppStore link in the Welcome View:

JF Delannoy said:

NB I did not remove Studio 2021 so far.

ok - has no relevance to this question.

Better so. I want to be able to work  with  S2021 until S2022 is fully functional including the plugin.

How can I check about the installation of S2022?
Looking up the Registry?

The best sequence would be to do it all from inside Studio:
Sign in, access the Store, get the plugin

I cannot sign in, for some reason.
(I mentioned this pb to Installation Support in parallel).

In the way I described above I dowloaded the installer from the site, and applied it from outside the app.

I do have the installer for Deepl Pluging v 6.0.1.0.
And it does not recognize Studio 2022.

JF Delannoy 

JF Delannoy said:

I do have the installer for Deepl Pluging v 6.0.1.0.

No, you do not.  You have the plugin for 2022 but the installer that is being called is the one for 2021 or even earlier... I cannot tell.  But it isn't 2022 and that is why 2022 is not shown when you double click the plugin.

Given you seem to be engaged with Technical Support already I suggest we let them solve this.  I think you probably need to reinstall or repair install 2022, and also learn how to see the hidden files and folders.  That will be especially useful since you could also try just copying the deepl plugin to this location and restart Studio 2022:

c:\Users\jfd\AppData\Roaming\Trados\Trados Studio\17\Plugins\Packages\

When you restart Studio 2022 DeepL should be there.

Throwing all that in.

I know how to show hidden files.

Moved the Plugin installer to the said directory C:\Users\jfd\AppData\Roaming\Trados\Trados Studio\17\Plugins\Packages
and ran it.
Same result.

Repair says repaired OK, then says This program might not have been installed successfully. ???

Plus new error about access to a directory.

JF Delannoy 

This screenshot seems to be helping us get there!!

If you are seeing this then I think the problem is likely to be related to Windows Defender blocking Trados Studio and it's associated applications from running freely.  Please make sure you have whitelisted Trados Studio.