When updating the Flex Builder to the 3.1.0 SDK, the source code for the data visualization and advanced data grid aren’t updated correctly. To fix this in Windows, follow these steps:

  1. Help Menu > Search for flex builder update
  2. Copy the license.properties file from C:\Documents and Settings\All Users\Application Data\Adobe\Flex to C:\Program Files\Adobe\Flex Builder 3\sdks\3.1.0\lib
  3. Create a batch file in the C:\Program Files\Adobe\Flex Builder 3\sdks\3.1.0\lib folder and place the following command in it: java -jar .\DMV-source.jar .\ ..\
  4. Run the batch file
  5. Build the next killer Flex app