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Make sure you have .NET 8.0 installed: https://dotnet.microsoft.com/en-us/download/dotnet/thank-you/runtime-desktop-8.0.3-windows-x64-installer
Collada support is being deprecated in Blender (see https://devtalk.blender.org/t/moving-collada-i-o-to-legacy-status/34621 ). LSLib v1.20 adds support for glTF 2.0, a more modern format which will replace Collada as the primary means to import/export Blender model and animation data.
You need to update to the latest version of the BG3 exporter plugin (https://github.com/Norbyte/dos2de_collada_exporter) to use this functionality.