Patch Listing Error Flex 3 'link' Guide

If the server is down, no local fix will work; check community forums like

java -Dhttps.protocols=TLSv1.1,TLSv1.2 -jar flex_sdk_installer-4.0.jar patch listing error flex 3

: Using an outdated or unofficial repository can lead to "Image Error" or failed updates. If the server is down, no local fix