When you are working on a large project sometimes Flex Builder sill take ages to save a file  If you are anything like me you have probably had the blue screen of death moment when you’ve lost important work because you haven’t saved regularly enough, so now save nearly every time you finish a line of code.  This means that a rather irritating pause becomes a real productivity problem.

The reason Flex Builder takes so long to save is probably because you have the ‘Build Automatically’ preference selected.  This means that when you save Flex Builder will automatically build the entire project for you.  This is great when you are teaching yourself Flex as you’re probably only working with a few files.  After a while though Flex projects do end up with lots of files and it takes a bit of time for them to compile.

What I suggest is uncheck the ‘Build Automatcially’ preference, found in the Project Menu.  This stops the compile, BUT will also not automatically check your project for errors.  To do this you must build the project, the short cut is ‘Ctrl – B’ (on Windows, not sure on a Mac).  This compiles the project and checks it for errors.