# App not running - Internal Server Error

**URL:** <https://community.firebasestudio.dev/t/app-not-running-internal-server-error/12949>\
**Category:** General\
**Tags:** troubleshooting\
**Created:** [May 22, 2025, 9:06am UTC](https://community.firebasestudio.dev/t/app-not-running-internal-server-error/12949 "2025-05-22T09:06:20Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Toke](https://sea2.discourse-cdn.com/flex002/user_avatar/community.firebasestudio.dev/toke/32/6603_2.png) [@Toke](https://community.firebasestudio.dev/u/Toke)\
**Post date:** [May 22, 2025, 9:06am UTC](https://community.firebasestudio.dev/t/app-not-running-internal-server-error/12949/1 "2025-05-22T09:06:20Z")

</div>

My App is just showing "Internal Server Error. Gemini tells me:

It seems like the port 9002 is already in use. Would you like me to try running the app on a different port, or would you like to try and find what is running on port 9002?

Any ideas how to fix this?

 ![image](https://us1.discourse-cdn.com/flex002/uploads/idxcommunity/original/2X/7/7595c4907a784061b18bab049470ed957ca07788.png)