It seems like this issue is with your local environment. Some packages are missing so try to clean your solution and then rebuild it again.
And if you are running your from publish folder then try to delete the folder and then republish the solution again.
One more thing make sure you have also update the dependent packages as well.
I did cleaning of solution and rebuilt it. Deleted all items in bin folder and rebuilt the solution. Still it didn't help. It's throws error message for some other package and it is looking for files with 11.23.4 version.
You must still have a reference to the 11.23.4 version in there somewhere. I'd suggest doing a search for that version number in your codebase - it may even help to use something like 'Find in files' on Notepad++ so that your .csproj files get searched too.
You could also try deleting the entire packages folder and then restoring from Nuget.
Thank you both for the kind help.
New package update for episerver.cms.ui 11.23.5 breaks at global.asax.cs file with following error:
Is this is issue with package update or issue with set up in local environment?