and this error exists on my system as well now (didn't a while back).
I attempted the workaround script provided by @njs and I can confirm it "solves" the issue.
I then undid the script work-around and installed "libnss3-dev" (which depends on "libnspr4-dev") per @kktkht and this ALSO solved the issue.
Personally, IMHO, the script workaround is a cleaner solution since nothing else requires additional packages...especially 'dev' packages when not developing.
I created a script called "zotero-evince" which contains:
#!/bin/sh unset LD_LIBRARY_PATH exec evince "$@"
Make sure you make it executable and then point Zotero's config to use this script as the custom PDF viewer (Preferences -> General -> Open PDFs Using...).
I'm still curious why that has helped. I can open evince without issue in Zotero on Ubuntu 19.10, and I can't find the string LD_LIBRARY_PATH anywhere in the Zotero source.
I started seeing this for the first time today with Zotero 5.0.94 on Ubuntu 18.04 using the Cinnamon desktop environment. I have configured evince as my PDF viewer system-wide.
Restarting Zotero (without installing any additional packages) fixed it for now at least.
Used to be fine, just have this issue today. Maybe not a problem of LD_LIBRARY_PATH. Zotero is set to use the system's default pdf viewer. If I set the default viewer to ubuntu's document viewer, this problem happens. However, when using WPS pdf, everything works fine.
Upgrade Storage
Only applying the fix from njs fixed the issue for now.
OS : Linux, Debian Buster (10)
Kernel: 4.19.0-8-amd64 #1 SMP Debian 4.19.98-1 (2020-01-26)
Zotero: 5.0.83
and this error exists on my system as well now (didn't a while back).
I attempted the workaround script provided by @njs and I can confirm it "solves" the issue.
I then undid the script work-around and installed "libnss3-dev" (which depends on "libnspr4-dev") per @kktkht and this ALSO solved the issue.
Personally, IMHO, the script workaround is a cleaner solution since nothing else requires additional packages...especially 'dev' packages when not developing.
I created a script called "zotero-evince" which contains:
#!/bin/sh
unset LD_LIBRARY_PATH
exec evince "$@"
Make sure you make it executable and then point Zotero's config to use this script as the custom PDF viewer (Preferences -> General -> Open PDFs Using...).
I've also experienced this problem randomly off and on in the past.
I indeed solved my problem with:
sudo apt install libnss3-dev
Restart Zotero. Then everything works!
Restarting Zotero (without installing any additional packages) fixed it for now at least.
Simply closing zotero and opening it again solved the problem.
Restart solved it.
Bug found in zotero 6.0.6 and Debian 11.
Fixed by unsetting LD_LIBRARY_PATH