Failed generating terrain map: System.EntryPointNotFoundException: LibslAllocDecoded
  at (wrapper managed-to-native) OpenJPEGNet.OpenJPEG:LibslAllocDecoded (OpenJPEGNet.OpenJPEG/LibslImage&)
  at OpenJPEGNet.OpenJPEG.Encode (System.Byte[] decoded, Int32 width, Int32 height, Int32 components, Boolean lossless) [0x00000]
  at OpenJPEGNet.OpenJPEG.EncodeFromImage (System.Drawing.Bitmap bitmap, Boolean lossless) [0x00000]
  at OpenSim.Region.Terrain.TerrainEngine.exportJpegImage (System.String gradientmap) [0x00000]