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SSL_CERT_FILE not set  

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Markov
(@markov)
Active Member
SSL_CERT_FILE not set

I am using Prusaslicer 2.9.4 on Kubuntu 24.04 Linux installed from flatpak. I get a dialog box when starting saying:

"Prusaslicer detected system SSL certificate store in: /etc/pki/tls/certs/ca-bundle.crt

To specify the system certificate store manually, please set the SSL_CERT_FILE environment variable to the correct CA bundle and restart the application."

I didn't have that directory so I sudo-created it and put a copy of ca-bundle.crt in there. Still no good. I used export to create the environment variable (export -p showed no variable). Still no good. The symptom I get in the application is that I can't use the network to send the gcode to the printer. I have to program the USB stick manually. The printer is 2 meters away and it's too hard to go that far! X-D

Posted : 25/11/2025 1:43 am
bertwest
(@bertwest)
Member
RE: SSL_CERT_FILE not set

I do have the same problem on Manjaro. However I can sent files via Prusa Link. But still the message comes up with every start of prusaslicer.

Posted : 11/12/2025 7:22 am
bjoerns1983
(@bjoerns1983)
Member
RE: SSL_CERT_FILE not set

Use fleatseal to add an new environmental variable SSL_CERT_FILE=/etc/ssl/certs/ca-bundle.crt

Posted : 05/01/2026 10:16 pm
rhauff
(@rhauff)
Active Member
RE: SSL_CERT_FILE not set

 

Posted by: @bjoerns1983

Use fleatseal to add an new environmental variable SSL_CERT_FILE=/etc/ssl/certs/ca-bundle.crt

Can you please clarify?  What is fleatseal?

Posted : 04/03/2026 10:39 pm
bjoerns1983
(@bjoerns1983)
Member
RE: SSL_CERT_FILE not set

Flatseal is a graphical permission Manager for Flatpack which makes it easier ti set such environmental variables.

https://github.com/tchx84/Flatseal

Posted : 05/03/2026 7:31 am
rhauff
(@rhauff)
Active Member
RE:

Ok, thanks.  I installed flatseal from this link:

https://flathub.org/en/apps/com.github.tchx84.Flatseal/install

then added the needed folder that was outside my home directory in the "Other Files" section of Flatseal:

Flatseal-dir

Posted : 07/03/2026 5:48 pm
rhauff
(@rhauff)
Active Member
RE: SSL_CERT_FILE not set

Ok, previous post was actually for adding a directory outside my /home, where all my print files are saved.

To fix the SSL is actually here:

Posted : 07/03/2026 6:22 pm
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