Syntax error with Unity 2019.4.35f

[soelderer]

Hello,

I am trying to use bmlTUX with Unity 2019.4.35f. I have enabled .NET 4.x in the project settings. Upon installing the package, I get a syntax error in TuxLog.cs(19,40):

Library\PackageCache\com.biomotionlab.tux@5.0.0\Scripts\Utilities\TuxLog.cs(19,40): error CS1525: Invalid expression term '='

The line is bmlTuxEditorSettings ??= BmlTuxEditorSettings.GetOrCreateSettings();. I suspect it's because the null-coalescing assignment operator was introduced in C# 8.0 if I'm not mistaken.

With 2022.3.59 I don't get the error. Maybe just update the requirements accordingly?

Best regards and thank you for your work!
Paul

[AdamBebko]

Your analysis is correct. It’s the c# version. It’s been a long time, but I’m pretty sure you can manually bump up the .net version in a project using Unity 2019. So instead of 4x you’d actually specify the higher version that’s higher than the automatically picked one.

[AdamBebko]

Just to note if you really need to use an old version, you can load the package as an embedded package and edit it yourself. To be compatible. Or crate a fork. Hope that helps.

[soelderer]

Thanks for the quick support!