# This project cannot be launched

**URL:** <https://forum.kirupa.com/t/this-project-cannot-be-launched/292908>\
**Category:** flash\
**Created:** [July 20, 2009, 8:21pm UTC](https://forum.kirupa.com/t/this-project-cannot-be-launched/292908 "2009-07-20T20:21:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Digitalosophy](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/digitalosophy/32/1114_2.png) [@Digitalosophy](https://forum.kirupa.com/u/Digitalosophy)\
**Post date:** [July 20, 2009, 8:21pm UTC](https://forum.kirupa.com/t/this-project-cannot-be-launched/292908/1 "2009-07-20T20:21:55Z")

</div>

Man what a headache this has been.

Out of nowhere, completely random, I go to compile a project and I get “This project cannot be launched”.

Seems as if all my compiler setting have nulled themselves, no warning, no error message, nothing. Everything is just blank.

Looks like it’s a common (somewhat) problem floating around the internet.

Does anyone know why this happens or how to prevent it from happening again?

The only thing I can think of is I had 2 projects open at the same time (which an ex coworker told me a while back is a no no with Flex).

Thanks all

**edit:** Forgot to add “my” solution. I just deleted the project and recreated it. Just remember to keep a copy of your src class if you are using a library, because that file is deleted once you clear out the project.