I cant import a flash builder 4.0 project into flash builder 4.5

We have a flex app and its correspoding SWC project which works great in flash builder 4.0, and we have imported it a bunch of times to a fresh installation no problem.

However, there doesnt seem to be any way to get it to import or run in FB 4.5.

First, the projects were checked out into: c:\dev\flash_ws\apitester (this is the flex project) c:\dev\flash_ws\flashAPI (this is just a bunch of actionscript and the swc project).

Now in FB4.5, I simply hit file->import flash builder project, chose c:\dev\flash_ws\apitester and it picks up the .actionScriptProperties or similar and loads the project. But it only imports half the project - it has lost the flashapi part. If I do the same thing in FB4.0, it picks up the flashapi library project too.

The second problem, is FB4.5 has NO option to import an existing 开发者_如何学编程library project, or link to it. If I go into project->properties->library path, neither "add project" "add swc folder" nor "add swc" will take the directory c:\dev\flash_ws\flashAPI which contains the source I want to be able to edit and use.

I notice that in source path is this: ${DOCUMENTS}\flashAPI\src

So it did remember the dependency on flashAPI

BUT: when I lookat project->properties->Resource->linked resoures, I see a load of rubbish:

DOCUMENTS->C:\Users\Simon\Adobe Flash Builder 4.5
PARENT_LOC->C:\Users\Simon\Adobe Flash Builder 4.5
PROJECT_LOC->C:\Users\Simon\Adobe Flash Builder 4.5
WORKSPACE_LOC->C:\Users\Simon\Adobe Flash Builder 4.5

I never chose these locations - flash did it by iteslf.

My workspace is in c:\dev\flash_ws.

I cant change the above! the Edit field is greyed out for all except DOCUMENTS.

So I changed DOCUMENTS to be c:\dev\flash_ws, but it still doesnt pick up my flashAPI library.

Also, none of my mxml files are lised in the run configuratinos - its lost those, and I cant find a way to make flash builder realise that its own mxml files should be runnable.

Any ideas?

NB The project imports and runs fine in flashdevelop - which is free. Thats what Im using until we can find away to get a flash builder project to work in flash builder.