After upgrading Apex from 5.1 to 19.1, all the plugins in my applications have stopped working.
My simple page, that has one Select2 plugin, shows error messages displayed below. All plugins show these kinds of error messages.
I am in an enterprise environment with no access to the database server, so I am not able to investigate the files or paths there.
I suspect that the reason for this issue is that the path to the files used by Select2-plugin is incorrect after the upgrade. Or do I have to do something after the upgrade, like "Refresh Theme", with regards to plugins.
Please advice me on this issue. It is causing me a big headache.
Below are the error messages from my web page (I have had to anonymize parts of paths in the screen shots below).
Failed to load resource: the server responded with a status of 404 (Not Found)
select2.min.css:1 Failed to load resource: the server responded with a status of 404 (Not Found)
select2-apex.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)
select2.full.min.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)
select2-apex.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)
desktop_all.min.js?v=19.1.0.00.15:2 jQuery.Deferred exception: $(...).select2 is not a function TypeError: $(...).select2 is not a function
at [http://zzz-cccccc.ww.abcdefg.no:8080/ords/f?p=104:2:24526292449770::NO::::196:22](http://zzz-cccccc.ww.abcdefg.no:8080/ords/f?p=104:2:24526292449770::NO::::196:22)
at [http://zzz-cccccc.ww.abcdefg.no:8080/ords/f?p=104:2:24526292449770::NO::::197:47](http://zzz-cccccc.ww.abcdefg.no:8080/ords/f?p=104:2:24526292449770::NO::::197:47)
at u ([http://zzz-cccccc.ww.abcdefg.no:8080/i/libraries/apex/minified/desktop_all.min.js?v=19.1.0.00.15:2:27457](http://zzz-cccccc.ww.abcdefg.no:8080/i/libraries/apex/minified/desktop_all.min.js?v=19.1.0.00.15:2:27457))
at Object.add \[as done\] ([http://zzz-cccccc.ww.abcdefg.no:8080/i/libraries/apex/minified/desktop_all.min.js?v=19.1.0.00.15:2:27735](http://zzz-cccccc.ww.abcdefg.no:8080/i/libraries/apex/minified/desktop_all.min.js?v=19.1.0.00.15:2:27735))
at HTMLDocument.\<anonymous> ([http://zzz-cccccc.ww.abcdefg.no:8080/ords/f?p=104:2:24526292449770::NO::::192:67](http://zzz-cccccc.ww.abcdefg.no:8080/ords/f?p=104:2:24526292449770::NO::::192:67))
at Object.a.init ([http://zzz-cccccc.ww.abcdefg.no:8080/i/libraries/apex/minified/desktop_all.min.js?v=19.1.0.00.15:14:5325](http://zzz-cccccc.ww.abcdefg.no:8080/i/libraries/apex/minified/desktop_all.min.js?v=19.1.0.00.15:14:5325))
at HTMLDocument.\<anonymous> ([http://zzz-cccccc.ww.abcdefg.no:8080/ords/f?p=104:2:24526292449770::NO::::190:11](http://zzz-cccccc.ww.abcdefg.no:8080/ords/f?p=104:2:24526292449770::NO::::190:11))
at l ([http://zzz-cccccc.ww.abcdefg.no:8080/i/libraries/apex/minified/desktop_all.min.js?v=19.1.0.00.15:2:29375](http://zzz-cccccc.ww.abcdefg.no:8080/i/libraries/apex/minified/desktop_all.min.js?v=19.1.0.00.15:2:29375))
at c ([http://zzz-cccccc.ww.abcdefg.no:8080/i/libraries/apex/minified/desktop_all.min.js?v=19.1.0.00.15:2:29677](http://zzz-cccccc.ww.abcdefg.no:8080/i/libraries/apex/minified/desktop_all.min.js?v=19.1.0.00.15:2:29677)) undefined
w.Deferred.exceptionHook @ desktop_all.min.js?v=19.1.0.00.15:2
desktop_all.min.js?v=19.1.0.00.15:2 Uncaught TypeError: $(...).select2 is not a function
at f?p=104:2:24526292449770::NO::::196
at f?p=104:2:24526292449770::NO::::197
at u (desktop\_all.min.js?v=19.1.0.00.15:2)
at Object.add \[as done\] (desktop\_all.min.js?v=19.1.0.00.15:2)
