试了spine-unity-3_7 和spine-unity-3.8 同样报错
EndOfStreamException: Attempted to read past the end of the stream.
Spine.SkeletonBinary.ReadFully (System.IO.Stream input, System.Byte[] buffer, System.Int32 offset, System.Int32 length) (at Assets/Spine/Runtime/spine-csharp/SkeletonBinary.cs:899)
Spine.SkeletonBinary.ReadString (System.IO.Stream input) (at Assets/Spine/Runtime/spine-csharp/SkeletonBinary.cs:892)
Spine.SkeletonBinary.ReadSkeletonData (System.IO.Stream input) (at Assets/Spine/Runtime/spine-csharp/SkeletonBinary.cs:154)