Editor does not start on Linux - missing font?

Platforms Linux
#1

I am trying to run Flax on EndeavourOS and the editor says “Aborted”. The Debug version reports it cannot load font

$dotnet --list-sdks
7.0.306 [/home/andy/Tools/DotNet/sdk]
$
$/home/andy/Tools/Flax/Binaries/Editor/Linux/Debug/FlaxEditor
X Error of failed request:  BadAtom (invalid Atom parameter)
  Major opcode of failed request:  18 (X_ChangeProperty)
  Atom id in failed request:  0x0
  Serial number of failed request:  20
  Current serial number in output stream:  21
Couldn't load font -*-*-medium-r-normal--*-120-*-*-*-*-*-*$
$

Evidently I either do not have some fonts installed or do not have the package that allows .NET apps to locate fonts, but I cannot imagine what that can be.

Any ideas?

#2

Seams like an issue with X11 interfece installation. Maybe that Linux distro doesn’t have any UI stuff like fonts. You can run Flax with -std -headless command arg to get verbose logs into console without any UI popups.

#3

Maybe. Unfortunately, I moved from EndeavourOS to MX Linux, so that is hard to check.

Yes, I can!

$ env | grep PATH
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/sbin:/usr/sbin
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Debug
$ dotnet --version
7.0.306
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Debug
$ ./FlaxEditor -new
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Debug
$ ls
Binaries  Debug.flaxproj         FlaxEngine.CSharp.dll                 FlaxEngine.CSharp.xml  Logo.png             Newtonsoft.Json.pdb
Cache     FlaxEditor             FlaxEngine.CSharp.pdb                 libFlaxEditor.so       Logs                 Source
Content   FlaxEditor.Build.json  FlaxEngine.CSharp.runtimeconfig.json  libnethost.so          Newtonsoft.Json.dll
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Debug
$ ./FlaxEditor -std -headless
Error: 0x7f3ecf710b00
[ 15:27:31.309 ]: [Warning] Managed Editor exit called after exit or before init.
================================================================
 Total errors: 0
 Closing file
================================================================
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Debug
$ cd ../Release/
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Release
$ ./FlaxEditor -std -headless
Aborted
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Release
$ ./FlaxEditor -new
Aborted
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Release
$ ls
FlaxEditor             FlaxEngine.CSharp.dll  FlaxEngine.CSharp.runtimeconfig.json  libFlaxEditor.so  Logo.png             Newtonsoft.Json.pdb
FlaxEditor.Build.json  FlaxEngine.CSharp.pdb  FlaxEngine.CSharp.xml                 libnethost.so     Newtonsoft.Json.dll
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Release
$ cd ../Development/
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Development
$ ./FlaxEditor -std -headless
Aborted
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Development
$ ./FlaxEditor -new
Aborted
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Development
$ ls
FlaxEditor             FlaxEngine.CSharp.pdb                 libFlaxEditor.so  Logo.png             nunit.framework.dll
FlaxEditor.Build.json  FlaxEngine.CSharp.runtimeconfig.json  libFlaxTests.so   Newtonsoft.Json.dll
FlaxEngine.CSharp.dll  FlaxEngine.CSharp.xml                 libnethost.so     Newtonsoft.Json.pdb
andy@mx:~/Tools/Flax/Binaries/Editor/Linux/Development
$

As you can see, only the Debug version says something and even produces a project if run from its installation folder. Development and Release just say “Aborted”.