Flash Builder "unknow FLex SDK Flex Hero" problem(urgent)

Dear all,

I developed my mobile andriod game in the flash builder burrito and suddenly I can't open it because of this error "Licensing for this product has expired"

so I installed  flash builder 4.5 premium and when I get my project from svn and I ran it I have this error

Description    Resource    Path    Location    Type
Unknown Flex SDK: "Flex Hero"    AndriodGame        Unknown    Flex Problem

Someone can help me to point out what can I do ?

Thanks in advance.