Anyone know how to solve this following issue in author?
21.01.2020 10:34:51.791 *ERROR* [10.54.37.38  GET /etc/designs/myapp/clientlibs.min.css HTTP/1.1] com.adobe.granite.ui.clientlibs.impl.HtmlLibraryServlet Cannot create library for /etc/designs/myapp/clientlibs.min.css
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Try to rebuild the libraries: https://helpx.adobe.com/ca/experience-manager/kb/How-to-force-a-recompilation-of-all-Sling-scripts-j...
Is there any "Caused by" message at the end of this exception?
Can you provide a full stack trace?
Likely an error by either the YUI or GCC processors to minify your css.