[error] Error: Class "Drupal\Core\Plugin\ContextAwarePluginBase" not found in include() (line 44 of modules/contrib/social_share/src/Plugin/SocialShareLink/LInkedInShareLink.php)

Not sure if this will work but you can try this patch out.

sidharth_soman thanks for the fast response!
I think thats what we need but its not only one plugin - sorry my description was a bit misleading in this case.
Basically all of the Plugins are affected - i created a new patch for that.

Thanks shagel This patch worked for me.

FYI, I was using the 3461912-9.patch patch from https://www.drupal.org/project/social_share/issues/3461912 🐛 Fatal error on upgrade of typed_data dependencies RTBC along with 3378493-3.patch from this thread.. and I could not get 3378493-3.patch to apply, because 3461912-9.patch patches the same things.

this was merged as part of #3461912 - thank you!

Automatically closed - issue fixed for 2 weeks with no activity.