Install on Ubuntu Linux


... succeeded, but fails to run. Using Ubuntu 22.04, last version of mono. Installing mono-devel instead of libmono-winforms2.0-cil, as suggested by the shell: "Package libmono-winforms2.0-cil is not available, but is referred to by another package.

This may mean that the package is missing, has been obsoleted, or

is only available from another source

However the following packages replace it:


E: Package 'libmono-winforms2.0-cil' has no installation candidate"

Install then went fine: "mono-devel is already the newest version ("

Trying to run the .exe, I get the registration screen, proceed with trial, then error message :

System.MissingMethodException: Method not found: int System.Windows.Forms.Control.get_DeviceDpi()

at SoftwareIdeas.Controls.ThemedControls.ThemedComboBox.InitializeListBox () [0x00056] in <29f9370a99024e2cae793c41e149891a>:0

So there must be sth wrong with Mono I guess... any clue?

30 August 2022 12:08:20 Airy Magnien

Add Comment

Dusan Rodina - 31 August 2022 14:12:56


Thank you for your feedback. We will look at it. The WinForms implementation in Mono is missing some newer features, and that causes this exception.