FLASH BUILDER 4.7 PROBLEM PLEASE HELP

Question

Hello,
So i just ordered the adobe creative cloud service today and downloaded the adobe application manager, installed Flash Builder 4.7 and then preceded to create a flash game.  It had tons of errors with my code so i then just did the simple HelloWorld program and it ran fine.  But as soon as i tried to type in more complex code like (import flash.display.Loader) it has a yellow triangle by this statement of code saying that (import flash.display.Loader is not used locally).  I have had this problem with the rest of my code also.  Please help!!!  I have already tried to contact adobe technical services but they said they couldn't help me because I had the creative cloud.  I am in desperate need of help!!!!!!!!!!!
Thanks,
DarkRue97

Answer 1

Flash Builder 4.7 is warning about unused imports largely to help you clean up your code. These warnings may also be useful if you have made a typo in the qualified name. An unused import, however, should not stop you from building your application.
If you're building a Flex application, then you should use a Flex project. Flex projects use the Flex SDK 4.6 already included in Flash Builder 4.7. Unless you're trying to customize or update the SDK for a specific reason, you shouldn't need to add a new Flex SDK if you're just starting out to explore developing a Flex application.
Once you start writing more complicated applications or games that take advantage of the latest AIR features, you can update the Flex SDK with a later version of AIR by applying the updated AIR SDK overlay for Flex zip distribution manually. I would wait until you're more familiar with Flash Builder 4.7 and Flex projects before trying to upgrade an SDK. The following like describes the process:
http://helpx.adobe.com/x-productkb/multi/how-overlay-air-sdk-flex-sdk.html
If you're doing pure-ActionScript development, you can use an ActionScript project. These projects use the new compiler, ASC 2.0. In such a project, you cannot use Flex concepts, like MXML or CSS. Some Flex-specific metadata extensions in AS3 are also not supported. Just pure-AS3.