ClientLibs (JS and CSS) of my project are not getting picked up from /etc/* after AEM 6.4 upgrade. It used to work on AEM 6.3.
As soon as I move my clientlibs to /apps/* folder clientlibs are getting picked up. Also, I can't see generated libs within /var/clientlibs/*. It' empty.
clientlibs cache is stored in crx-quickstart/launchpad/felix/bundle<clientlibs-BundleID (com.adobe.granite.ui.clientlibs)>/data/outputcache
In addition to Vish.dhaliwal's answer please familiarize yourself with the extensive repository restructuring that happened in 6.4.
Virtually everything was moved out of /etc/
Adobe Experience Manager Help | Common Repository Restructuring in AEM 6.4
Starting with 6.3, the practice was to move the client libs to `/apps`, since they’re essentially code provided together with an app’s components. Also, they are overlay-able.
did you add this on clientlibs? Check we-retail/WKND for reference
Getting Started with AEM Sites Chapter 3 - Client-Side Libraries and Responsive Grid
Use http://localhost:4502/libs/granite/ui/content/dumplibs.html to flush/regenerate clientlibs or otherwise delete from filesystem as mentioned by Vishu if you have access to same.
search for bundle with 'fsclassload' in case you want to locate bundle id and then purge via filesystem