Error message while executing a SWF File

Question

Hi All,
Iam trying to execute a SWF file which has its actionscript
written in AS3. When i execute this, I am getting an error message
which is as follows
Verify Error 1030# Stack Depth unbalanced 1 != 0.
Can anyone tell me what could be the root cause?
Thanks in advance,
Prabakaran Srinivasan.

Answer 1

Hi All,
I am able to find the root cause for this. For AS 3 classes,
while parsing the ABC code, every method body will be a set of
instructions in which each instruction will have an offset to it.
This offset will be useful to mark the target for branching
instructions like if, while etc.... Because, these instructions
contains targetoffset as a parameter to which the instruction has
to jump when the condition becomes true or false. The process what
i am doing is i do some code injection to replace the URLRequest
calls. The flash file in which i got this error, i did replace the
URLRequest call to my own method call and this code was being
wrapped up by an IF block. Because of the code injection, i need to
update the offset of the instructions with the difference offset
value. I did this, but i missed the jumpoffset parameter of the if
block wrapping my injected code which was the root cause. I did fix
this...
Thanks,
Prabakaran Srinivasan.