# Debug launch failed - debugger not working

**URL:** <https://forum.kirupa.com/t/debug-launch-failed-debugger-not-working/248210>\
**Category:** flash\
**Created:** [January 5, 2008, 12:20am UTC](https://forum.kirupa.com/t/debug-launch-failed-debugger-not-working/248210 "2008-01-05T00:20:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![karenmaryobrien](https://avatars.discourse-cdn.com/v4/letter/k/51bf81/32.png) [@karenmaryobrien](https://forum.kirupa.com/u/karenmaryobrien)\
**Post date:** [January 5, 2008, 12:20am UTC](https://forum.kirupa.com/t/debug-launch-failed-debugger-not-working/248210/1 "2008-01-05T00:20:05Z")

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hi,

when I try to run the debugger on an actionscript 3 flash movie, the following dialog box appears:  
‘Debug launch failed. Debug session will terminate’

Then the debugger doesn’t work.

This is really annoying as I find it very hard to work with flash without the debugger. Does anyone know the solution?