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In Flash CS5 New Features, author Todd Perkins demonstrates key changes in the CS5 release of Adobe's interactive design and animation software. This course covers enhanced ActionScript features, including code snippets and error handling improvements, new publishing options for Adobe AIR, Illustrator, Photoshop, and Flash Builder integration, and the new Text Layout Framework for detailed text editing. Exercise files are included with the course.
Flash CS5 offers improved error handling when you're working with ActionScript. In my Actions panel, I have some bad code. I'm initiating a Loader instance as a MovieClip. It should be a Loader, if you're not familiar with this code, and I'm running a function that doesn't exist. Let's take a look at what happens when I test the movie. I'll close the Preview window and take a look in the Compiler Errors panel. In there, you can see Implicit coercion of a value type to an unrelated type and then Call to a possibly undefined method.
Now before, you could just double-click an error and Flash would take you to that error in the Actions panel. That's an excellent feature, but it was actually kind of hidden. Now that feature is a little bit more obvious with the buttons in the Compiler Errors panel. The Up button is called Go To Source, so if you click the up arrow, then Flash will take you to the source code that's causing that error. So, this will work with both of these problems, and you'll see that the code is highlighted, so you can know exactly what code is causing the problem.
The left and right arrows allow you to go to the different errors in your code to open them up in the Actions panel. This is actually more useful if you have the Actions panel as a floating menu. So, if I shrink it here and then I put the code toward the top of the screen, I can go through the different errors, like this. In addition to that, I can use the Options menu to copy the errors. Now that may not seem that useful, but actually, what a lot of people do online is they'll put an error message in a Web search, so the chances are, if you get an error message, somebody's got that same error message before.
So, you can copy and paste that into a Web search to hopefully you'll find a solution to your problem. Finally, the Compiler Errors panel allows you to clear the errors by clicking the big red X, and the errors go away. And clearly, that doesn't automatically fix your code. It just clears the errors that are written in the window. If you test the movie again, you'll see that they appear again. So, using the new features in the Compiler Errors panel, you can more quickly fix problems that you find in your code.
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