[Compile errors on importing SRWorrds SDK]

When I import Vive-SRWorks-Unity-Plugin.unitypackage, the editor throws me these errors:

Assets\ViveSR\Editor\ReconstructedAssetImporter.cs(24,17): error CS0200: Property or indexer 'ModelImporter.importMaterials' cannot be assigned to -- it is read only

Assets\ViveSR\Editor\ReconstructedAssetImporter.cs(26,17): error CS0619: 'ModelImporter.importMaterials' is obsolete: 'importMaterials has been  removed. Use materialImportMode instead.'

Assets\ViveSR\Editor\ReconstructedAssetImporter.cs(26,17): error CS0200: Property or indexer 'ModelImporter.importMaterials' cannot be assigned to -- it is read only

Assets\ViveSR\Editor\ReconstructedAssetImporter.cs(34,17): error CS0619: 'ModelImporter.importMaterials' is obsolete: 'importMaterials has been  removed. Use materialImportMode instead.'

Assets\ViveSR\Editor\ReconstructedAssetImporter.cs(34,17): error CS0200: Property or indexer 'ModelImporter.importMaterials' cannot be assigned to -- it is read only

Could you tell me what I can do?

I use Unity 2020.3.28f1 LTS.

[Mixed reality project on HTC Vive Pro]

When I import the Vive-SRWorks-Unity-Plugin.unitypackage, I get same errors like it seems outdated...

I didn't understand: For SRworks to work properly in Unity 2020.3 LTS, do I need to also install VIVE Wave SDK and import this package?