Breakpoints not getting hit in Xamarin Studio

Question

My breakpoints aren\'t getting hit in Xamarin Studio. I\'m not sure if this has to do with my code, or not, but I feel as though it doesn\'t because I\'ve tried over and ove

Answer 1

I had the same problem.

THE CAUSE (IMO):

In my case the problem is caused by Xamarin Studio (but with VS2013 is the same) build/rebuild process.

More in details, the *.mdb files are not correctly regenerated and therefore the debugger does not work properly. You can check by doing a solution clean and going to bin/debug folder: if you still see *.mdf files then that's the problem in your case too!

SOLUTION

The only solution that works well is to manually delete all *.mdb files in bin/debug from all projects in your solution (so Android project and all PCL projects) and then do a Rebuild.

Let me know if this helps!

Answer 2

Deleting the BIN folders and any *.SUO file is a favorite fix for this issue.

Can also try deleting any *.csproj.user

In worst case, reset VS Settings by launching (Run) with "Devenv.exe /ResetSettings"

Answer 3

I faced this problem in Xamarin Forms app using Visual Studio for Mac. In my case, it was happened because of debugger. Visual studio was continuously showing "Waiting for the debugger to connect to the iOS simulator..." while running in an iOS simulator. I did reset the simulator (Hardware => Erase All Content and Settings) and cleaned up the solution. Then I could do the debugging with breakpoints. Hope this helps someone.

Answer 4

I'm not sure if someone is still following this thread, but this workaround worked for me. The problem sometimes has to do with the mono 5.

So the resolution is to use older version of mono:

Set "Project > Active Runtime" to "Mono 4.8.0 (8f6d0f6) (/Library/Frameworks/Mono.framework/Versions/4.8.0)".

for Mac users, change it in "Preferences" -> ".NET Runtimes"

Then Rebuild the Android app project.

Answer 5

I switched from stable to alpha Channel v.3.11.785 (Alpha). all breakpoints are now hit.

Answer 6

In my case, xamarin was not hitting any breakpoint. Red color rings were shown instead of filled red circles, because there were some syntax errors not able to be pointed out by xamarin, since I think solution build was not up to date, even I was able to run the app surprisingly. So I cleaned and build the solution, and it pointed out errors and relevant warnings after that. I fixed those, and ran the project. I was able to debug successfully after that!