Debugging mode failed wuth revit 2020

[MohamedMohrame]

facing a problem when running revit in debugging mode V.2020 , an exception message appears and stop running revit when continue 

is there any one face this problem and fix it ??

[RPTHOMAS108]

Never had that, what version of VS, what version of .Net are you targeting?

https://docs.microsoft.com/en-us/dotnet/framework/debug-trace-profile/fatalexecutionengineerror-mda

Enabling 'Just my code' may help to understand if this is your problem or someone else's.  Using managed compatibility mode may tell you more but I've not had to use that for Revit 2020 onwards.

However that Exception looks like it could be something specific to your setup/code and only you will be able to get to the bottom of it.

[MohamedMohrame]

VS v.2019 - Net framework 4.7.2