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Hello, I recently upgraded to Fedora 26 (GNOME environment) and I'm encountering problems launching the AirVPN client. I've tried using versions 2.12.4 and 2.13.6 of the client but I get the same problem with both. I did a little digging and found this forum post (https://airvpn.org/topic/20750-airvpn-not-working-with-fedora-25-wayland ) about a problem similar to mine, but it's about an earlier version of Fedora and the proposed solution doesn't solve my problem. Basically the error message I get when I launch AirVPN in the terminal is this No protocol specified Unhandled Exception: System.TypeInitializationException: The type initializer for 'System.Windows.Forms.WindowsFormsSynchronizationContext' threw an exception. ---> System.TypeInitializationException: The type initializer for 'System.Windows.Forms.XplatUI' threw an exception. ---> System.ArgumentNullException: Could not open display (X-Server required. Check your DISPLAY environment variable) Parameter name: Display at System.Windows.Forms.XplatUIX11.SetDisplay (System.IntPtr display_handle) [0x00435] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.XplatUIX11..ctor () [0x00077] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.XplatUIX11.GetInstance () [0x0001c] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.XplatUI..cctor () [0x0007d] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 --- End of inner exception stack trace --- at System.Windows.Forms.Theme.get_MenuAccessKeysUnderlined () [0x00000] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.SystemInformation.get_MenuAccessKeysUnderlined () [0x00005] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.Control..ctor () [0x000ea] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at (wrapper remoting-invoke-with-check) System.Windows.Forms.Control:.ctor () at System.Windows.Forms.WindowsFormsSynchronizationContext..cctor () [0x00000] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 --- End of inner exception stack trace --- at System.Windows.Forms.Control..ctor () [0x00014] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.ScrollableControl..ctor () [0x00000] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.ContainerControl..ctor () [0x0000e] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.Form..ctor () [0x00012] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.MessageBox+MessageBoxForm..ctor (System.Windows.Forms.IWin32Window owner, System.String text, System.String caption, System.Windows.Forms.MessageBoxButtons buttons, System.Windows.Forms.MessageBoxIcon icon, System.Boolean displayHelpButton) [0x0000c] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.MessageBox+MessageBoxForm..ctor (System.Windows.Forms.IWin32Window owner, System.String text, System.String caption, System.Windows.Forms.MessageBoxButtons buttons, System.Windows.Forms.MessageBoxIcon icon) [0x00000] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at (wrapper remoting-invoke-with-check) System.Windows.Forms.MessageBox+MessageBoxForm:.ctor (System.Windows.Forms.IWin32Window,string,string,System.Windows.Forms.MessageBoxButtons,System.Windows.Forms.MessageBoxIcon) at System.Windows.Forms.MessageBox.Show (System.String text, System.String caption, System.Windows.Forms.MessageBoxButtons buttons, System.Windows.Forms.MessageBoxIcon icon) [0x00000] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at Eddie.UI.Linux.Program.Main () [0x000c3] in <827d8be374f3486292e08d514075969c>:0 [ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: The type initializer for 'System.Windows.Forms.WindowsFormsSynchronizationContext' threw an exception. ---> System.TypeInitializationException: The type initializer for 'System.Windows.Forms.XplatUI' threw an exception. ---> System.ArgumentNullException: Could not open display (X-Server required. Check your DISPLAY environment variable) Parameter name: Display at System.Windows.Forms.XplatUIX11.SetDisplay (System.IntPtr display_handle) [0x00435] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.XplatUIX11..ctor () [0x00077] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.XplatUIX11.GetInstance () [0x0001c] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.XplatUI..cctor () [0x0007d] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 --- End of inner exception stack trace --- at System.Windows.Forms.Theme.get_MenuAccessKeysUnderlined () [0x00000] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.SystemInformation.get_MenuAccessKeysUnderlined () [0x00005] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.Control..ctor () [0x000ea] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at (wrapper remoting-invoke-with-check) System.Windows.Forms.Control:.ctor () at System.Windows.Forms.WindowsFormsSynchronizationContext..cctor () [0x00000] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 --- End of inner exception stack trace --- at System.Windows.Forms.Control..ctor () [0x00014] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.ScrollableControl..ctor () [0x00000] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.ContainerControl..ctor () [0x0000e] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.Form..ctor () [0x00012] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.MessageBox+MessageBoxForm..ctor (System.Windows.Forms.IWin32Window owner, System.String text, System.String caption, System.Windows.Forms.MessageBoxButtons buttons, System.Windows.Forms.MessageBoxIcon icon, System.Boolean displayHelpButton) [0x0000c] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at System.Windows.Forms.MessageBox+MessageBoxForm..ctor (System.Windows.Forms.IWin32Window owner, System.String text, System.String caption, System.Windows.Forms.MessageBoxButtons buttons, System.Windows.Forms.MessageBoxIcon icon) [0x00000] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at (wrapper remoting-invoke-with-check) System.Windows.Forms.MessageBox+MessageBoxForm:.ctor (System.Windows.Forms.IWin32Window,string,string,System.Windows.Forms.MessageBoxButtons,System.Windows.Forms.MessageBoxIcon) at System.Windows.Forms.MessageBox.Show (System.String text, System.String caption, System.Windows.Forms.MessageBoxButtons buttons, System.Windows.Forms.MessageBoxIcon icon) [0x00000] in <2f8b04a5fbc8420bbb3895e91a62c74f>:0 at Eddie.UI.Linux.Program.Main () [0x000c3] in <827d8be374f3486292e08d514075969c>:0 I do have the package "xorg-x11" installed so the problem can't be the absence of an X Server. But I'm not an expert and I am completely out of ideas as to what could be wrong here. Any help would be appreciated. Thanks in advance.