I ended up a few times with these kind of errors while migrating to newer Flex 4 builds:
Description Resource Path Location Type
1044: Interface method invalidateParentSizeAndDisplayList in namespace mx.managers:ISystemManager not implemented by class _Main_mx_managers_SystemManager. example-project line 23 Flex Problem
Description Resource Path Location Type
1144: Interface method callInContext in namespace mx.core:IFlexModuleFactory is implemented with an incompatible signature in class _Main_mx_managers_SystemManager. example-project line 23 Flex Problem
The location/resource for these errors is the main MXML itself but that’s all you get. So you ask yourself what went wrong? A quick Google search does not help (until I blogged this hopefully) so where to start?
The problem is that you are mixing different SDK versions. In my case my project linked to a library which was compiled with a different SDK version and now the important thing: the framework linkage in the library was set to “Merge into code“. Change it to “Use default (external)” and you are fine.
I just opened up a project I had been working on for a while and my environment decided to lose it’s mind and throw the 1144 error. I’m on a super tight deadline and this is the sort of thing that just makes your heart stop. Google brought me to you and it solved it. Don’t usually post these, but I figured I owed you a “thanks for saving my @$$”. Keep blogging. We need you.
Thank you, I got the same error and was really concerned how to fix it.
Hey,
This did not work for me
Thanks! For anyone still having this issue, it is exactly as described above, but the solution proposed here may not work in every case.
In my case, I had a SWC project that was compiled with a different version of flex (4.5), and it was in the library path for a project that I was trying to compile in flex 4.1. The solution was to recompile the imported project with flex 4.1.
Thanks for posting this!
YOU
ARE
THE BEST!
I searched the reason for this for days and neither Adobe mentioned anything!
Thank you!