The definition of base class Application was not found.

Question

Hello:
I have been coding in Flash Builder Burrito and publishing to my Xoom for a few weeks. All of a sudden at the end of the day I'm getting this compiler error which says:
1017: The definition of base class Application was not found.    AppName.mxml    /AppName/src    Unknown    Flex Problem
I sometimes hit the wrong key with I try to copy and paste and all of a sudden a new window will open for source of a default component which I never wanted to edit. I'm afraid I somehow deleted or modified the default class defnition of Application?
I don't understand why this would come out of the blue, I was working on a function within a class that was drawing points  ... Then all off a sudden I'm getting this error and it's driving me nuts.
I tried to reinstall FB Burrito on my Mac, but after all that work it still says the same thing. Wouldn't it replace the default class defs?
Please help!

Answer 1

Wow, some really strange behavior.
OK, so here is what I'm going through. I reinstall, import the project and compiles.
Then I uncomment the new section which contains the following code:
lineStyle(1.0,0x8ea4bf);
var line_commands:Vector.<int> = new Vector.<int>();
line_commands.push(GraphicsPathCommand.LINE_TO, GraphicsPathCommand.LINE_TO, GraphicsPathCommand.LINE_TO, GraphicsPathCommand.LINE_TO);
var line_coord:Vector.<Number> = new Vector.<Number>();
line_coord.push(0,0, newW, angle, newW, (newH+angle), 0, newH);
drawPath(line_commands, line_coord);
I get 3 diffrent errors, which lead up to the error listed in the topic.
At first it says that "int" isn't a valid type and it points to this line:
var line_commands:Vector.<int> = new Vector.<int>();
Then I take int out so the line looks like this:
var line_commands:Vector = new Vector();
Then it says I can't nest classes and it points to the main MXML. I go to the main MXML then the error switches to say "The definition of base class Application was not found.".
I did figure out how to fix this with out reinstalling. I have to delete the project from my list (making sure to comment out the code above), then re-launch FB Burrito, then re-import the project and it works.
This is way nuts! I dont understand ... am I crazy?