# App crashes on quit

**URL:** https://discourse.libcinder.org/t/app-crashes-on-quit/709
**Category:** Using Cinder
**Created:** [May 31, 2017, 7:58pm UTC](https://discourse.libcinder.org/t/app-crashes-on-quit/709 "2017-05-31T19:58:36Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![hperigo](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.libcinder.org/hperigo/32/409_2.png) [@hperigo](https://discourse.libcinder.org/u/hperigo)
#### Post date: [May 31, 2017, 7:58pm UTC](https://discourse.libcinder.org/t/app-crashes-on-quit/709/1 "2017-05-31T19:58:36Z")

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Hello,

I’m having a strange error whenever a cinder application compiled on my machine quits.

 ![](https://canada1.discourse-cdn.com/flex030/uploads/libcinder/original/1X/d0e5b2ac5ee02ca1312763dde6a850a3c91576e0.jpg)

this does not happen when shutting down the app via xcode ( the stop button ) or telling it to quit from c++, although I do get a weird error message in the console:  
**2017-05-31 16:53:36.878050 AppName[3367:296061] DIGEST-MD5 common mech free**

I wrote it about it in here: [https://github.com/cinder/Cinder/issues/1848](https://github.com/cinder/Cinder/issues/1848)  
Production wise it’s just a annoying error. But it’s really bad when I have to send something for a client

any clues/tips?

thanks.  
bye

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### Author: ![lithium](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.libcinder.org/lithium/32/38_2.png) [@lithium](https://discourse.libcinder.org/u/lithium)
#### Post date: [June 1, 2017, 12:03am UTC](https://discourse.libcinder.org/t/app-crashes-on-quit/709/2 "2017-06-01T00:03:15Z")

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not joining a thread?

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### Author: ![hperigo](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.libcinder.org/hperigo/32/409_2.png) [@hperigo](https://discourse.libcinder.org/u/hperigo)
#### Post date: [June 1, 2017, 12:35am UTC](https://discourse.libcinder.org/t/app-crashes-on-quit/709/3 "2017-06-01T00:35:31Z")

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nop.  
sorry, forgot to mention, an app straight from tinderbox without any edditing crashes too

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### Author: ![MrFuzzy](https://avatars.discourse-cdn.com/v4/letter/m/6de8d8/32.png) [@MrFuzzy](https://discourse.libcinder.org/u/MrFuzzy)
#### Post date: [June 11, 2017, 11:46am UTC](https://discourse.libcinder.org/t/app-crashes-on-quit/709/4 "2017-06-11T11:46:56Z")

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do you use any blocks?