# Debugger does not stop on breaks in Library project
**URL:** https://forum.alternetsoft.com/t/debugger-does-not-stop-on-breaks-in-library-project/413
**Category:** AlterNET Studio Support
**Created:** [August 21, 2023, 3:52pm UTC](https://forum.alternetsoft.com/t/debugger-does-not-stop-on-breaks-in-library-project/413 "2023-08-21T15:52:21Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@wsalik](https://forum.alternetsoft.com/u/wsalik)
#### Post date: [August 21, 2023, 3:52pm UTC](https://forum.alternetsoft.com/t/debugger-does-not-stop-on-breaks-in-library-project/413/1 "2023-08-21T15:52:21Z")
I am trying Alternet Studio demo to debug .net 7 library project. I created a simple C# library project , set “start external program” parameter and on running with debugger everything works as expected except that debugger does not stop on breaks. I remember, I had tried some previous version, may be 8x and it worked fine
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### Author:  [@dmitry.medvedev](https://forum.alternetsoft.com/u/dmitry.medvedev)
#### Post date: [August 24, 2023, 2:06pm UTC](https://forum.alternetsoft.com/t/debugger-does-not-stop-on-breaks-in-library-project/413/2 "2023-08-24T14:06:47Z")
Hi,
We tried to reproduce this issue, and it seems to be a problem with debugging class library code under .NET Core. We will investigate it further. If you could send us a demo project which worked before, this would be of great help.
Kind regards,
Dmitry
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### Author:  [@dmitry.medvedev](https://forum.alternetsoft.com/u/dmitry.medvedev)
#### Post date: [August 29, 2023, 1:11pm UTC](https://forum.alternetsoft.com/t/debugger-does-not-stop-on-breaks-in-library-project/413/3 "2023-08-29T13:11:03Z")
Hi,
Just an update on this issue - there was a problem with debugging dll, in case the library and host application are compiled under .NET 6/7. It’s been resolved, and we will push the fix to NuGet shortly.
We will also provide a demo project showing how to correctly set up the debugger so it can debug dll in the above scenario.
Kind regards,
Dmitry