Originally posted by: forresto
Opening a project that I had been working on in design view gave me a grey workspace and the message in the properties column that "Properties view is not available" because MXML file is not in a Flex project (which it is). I closed a different project, and now the workspace has the error "An unknown item is declared as the root of your MXML document," even for new MXML app files.
Are these errors related? How can I fix them, or not encounter them in the first place?
Starting and editing a new Flex project and application works as expected.