Hi, I cannot help with the specifics of the error you are experiencing, I do have a suggestion you may wish to look further into which would get your air project working.
If you have a working .swf, that works in Flash Player (which it sounds like you do have), it is possible to package that .swf into an air .apk without having to recompile the project.
If you have the AIR SDK installed, the command to package that .swf into a .apk is something like this
adt -package -target apk-captive-runtime -storetype pkcs12 -keystore bin/sampleCert.p12 -storepass 1234 bin/new.apk bin/new-app.xml bin/myworking.swf -extdir bin
best to google the method for more info on it.