Patch Listing Error Flex 3 May 2026

The Flex SDK installer stores a patch listing file in your user directory. Deleting it forces a fresh download.

On Windows:

rmdir /s /q %USERPROFILE%\.flex_sdk_installer
rmdir /s /q %TEMP%\flex_patches

On macOS / Linux:

rm -rf ~/.flex_sdk_installer/
rm -rf /tmp/flex_*

After clearing, rerun the installer:

java -jar flex_sdk_installer-4.0.jar

Run the patch tool from the command line to get verbose output:

# For SAP JSPM
./jspm.sh -verbose
Do not apply random fixes. Follow this diagnostic chain.
If the automated installer continues to show "Patch listing error flex 3", bypass it entirely. Here is how to manually apply the Flex 3 patch set. patch listing error flex 3
What you need:

Manual procedure:
Here’s a useful troubleshooting post regarding the “Patch Listing Error” in Flex 3 (often related to Adobe Flex 3 SDK or FlexNet Publisher licensing): The Flex SDK installer stores a patch listing

The "patch listing error flex 3" often points to a half-downloaded patch index.
The latest Apache releases have backported the Flex 3 patch listing as a built-in module. Simply install with:
java -jar apache-flex-sdk-installer-4.16.1.jar --accept-license --include-flex3-patches

You have a class com.model.UserVO in both your Main Application and your Module. On macOS / Linux:  
  rm -rf ~/