# Can not open audio plugin host app **URL:** \ **Category:** Audio Plugins\ **Created:** [January 19, 2019, 6:11pm UTC](https://forum.juce.com/t/can-not-open-audio-plugin-host-app/31357 "2019-01-19T18:11:57Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![ralphlemouf](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/ralphlemouf/32/5686_2.png) [@ralphlemouf](https://forum.juce.com/u/ralphlemouf)\ **Post date:** [January 19, 2019, 6:11pm UTC](https://forum.juce.com/t/can-not-open-audio-plugin-host-app/31357/1 "2019-01-19T18:11:57Z")
I’m new to JUCE and following the tutorial. I was able to open the AudioPluginHost.app once before, but now when I try to open I’m getting an error stating “You can not open the application “AudioPluginHost.app” because it may be damaged or incomplete”. I’m following [this tute](https://docs.juce.com/master/tutorial_create_projucer_basic_plugin.html) I’ve tried deleting the whole JUCE app and reinstalling, restarting computer etc. Please help as I want to be able to complete each step of the tutorial. Another thing I noticed is when I was able to open it before, I was unable to connect the red midi connectors to my app, but that might be another issue once I figure out this first one. ---
**Author:** ![matkatmusic](https://avatars.discourse-cdn.com/v4/letter/m/dfb087/32.png) [@matkatmusic](https://forum.juce.com/u/matkatmusic)\ **Post date:** [January 19, 2019, 10:14pm UTC](https://forum.juce.com/t/can-not-open-audio-plugin-host-app/31357/2 "2019-01-19T22:14:30Z")
open the Plugin Host project in your IDE and recompile it. then proceed with your plugin project. ---
**Author:** ![ralphlemouf](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/ralphlemouf/32/5686_2.png) [@ralphlemouf](https://forum.juce.com/u/ralphlemouf)\ **Post date:** [January 23, 2019, 7:33am UTC](https://forum.juce.com/t/can-not-open-audio-plugin-host-app/31357/3 "2019-01-23T07:33:03Z")
Thanks.