When I am in design mode, I used to see this report from the
Design mode: Error during component layout. Choose Design >
Refresh to refresh design mode.
I clicked refresh from the design mode but this does not
solve the problem. The last time I closed the same project I was
working on, everything seems fine on design mode. But When this
error came out, I cannot see anything from the design mode anymore
but just a blank teal-colored design area. This therefore only
makes me do changes from the Source Code view. And in terms of
design and layout of components, i can only see them in actual if I
run my flex application.
This is an elusive bug in Flex Builder. Sometimes closing and
reopening the project will fix it. Othertimes, rebuilding the
project from scratch (start a new project then copy in all of your
files) works. If you are religious about source control, you can
try pulling different revisions and seeing what ends up breaking
In particular, I have seen issues using the * operator
causing issues. They don't occur all the time with * operator, but
I have seen it with that. Or possibly certain includes.
Certainly, you should be able to debug it by saving a copy of
your project and then ripping your project apart, removing code and
mxml piece by piece until you find the issue.