Patch Listing Error Flex 3 File

Create patch.lock in your SDK root:

[flex3]
patch.version=3.6.1
patch.url=file:///local_mirror/patches/flex3_rsl.swc
checksum=sha256:9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08

# In Flex Builder 3:
Project → Clean → Clean all projects

If the error persists, close Flex Builder, then delete: patch listing error flex 3

<workspace>/.metadata/.plugins/com.adobe.flexbuilder.project/
<workspace>/.metadata/.plugins/org.eclipse.core.resources/

Restart and re-import projects.

The "patch listing error flex 3" often points to a half-downloaded patch index. Create patch