Script compile errors on .Net 3.5 scripting backend

[timcassell]

Bug description

Running the builder with Unity 2018.4.36f1 and the .Net 3.5 scripting backend, it fails to build with compile errors:

-----CompilerOutput:-stdout--exitcode: 1--compilationhadfailure: True--outfile: Temp/UnityBuilderAction.dll
Compilation failed: 32 error(s), 0 warnings
-----CompilerOutput:-stderr----------
Assets/Editor/Editor/UnityBuilderAction/Builder.cs(64,27): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/AndroidSettings.cs(11,58): error CS1644: Feature `out variable declaration' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/AndroidSettings.cs(13,58): error CS1644: Feature `out variable declaration' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/AndroidSettings.cs(15,58): error CS1644: Feature `out variable declaration' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/AndroidSettings.cs(17,58): error CS1644: Feature `out variable declaration' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(15,37): error CS1644: Feature `out variable declaration' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(17,60): error CS1644: Feature `out variable declaration' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(22,60): error CS1644: Feature `out variable declaration' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(31,64): error CS1644: Feature `out variable declaration' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(37,64): error CS1644: Feature `out variable declaration' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(38,28): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(41,28): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(54,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(55,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(56,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(57,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(58,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Input/ArgumentsParser.cs(75,28): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Reporting/StdOutReporter.cs(14,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Reporting/StdOutReporter.cs(15,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Reporting/StdOutReporter.cs(16,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Reporting/StdOutReporter.cs(17,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Reporting/StdOutReporter.cs(18,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Reporting/StdOutReporter.cs(19,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Reporting/StdOutReporter.cs(20,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Reporting/StdOutReporter.cs(21,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Reporting/StdOutReporter.cs(22,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Reporting/StdOutReporter.cs(23,10): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Versioning/Git.cs(24,20): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Versioning/Git.cs(28,26): error CS1644: Feature `interpolated strings' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Versioning/Git.cs(109,82): error CS1644: Feature `out variable declaration' cannot be used because it is not part of the C# 4.0 language specification
Assets/Editor/Editor/UnityBuilderAction/Versioning/Git.cs(109,101): error CS1644: Feature `out variable declaration' cannot be used because it is not part of the C# 4.0 language specification
-----EndCompilerOutput---------------

How to reproduce

• Run the builder with a project targeting .Net 3.5 scripting runtime.

Expected behavior

Build completes without error.

Additional details

I know that Unity no longer supports .Net 3.5 scripting runtime, but I still need to use it for my project. I'll happily use an older version of unity-builder if an older version will work?

[davidmfinol]

I'd recommend you use the buildMethod option and edit the build script to not use newer C# features: https://game.ci/docs/github/builder#buildmethod

[timcassell]

@davidmfinol Ah cool, I just copied the example BuildScript.cs and fixed the compile errors, and that did the trick. Thanks!