使用SOFA For Unity SDK导入插件时触发ExecutionEngineException错误求助

错误信息：

ExecutionEngineException: String conversion error: Illegal byte sequence encounted in the input.
SofaUnityAPI.SofaContextAPI.DisplayMessages () (at Assets/SofaUnity/Plugins/SofaUnityAPI/SofaContextAPI.cs:429)
SofaUnity.SofaContext.DoCatchSofaMessages () (at Assets/SofaUnity/Scripts/SofaContext.cs:564)
SofaUnity.SofaContext.ReconnectSofaScene () (at Assets/SofaUnity/Scripts/SofaContext.cs:618)
SofaUnity.SofaContext.Init () (at Assets/SofaUnity/Scripts/SofaContext.cs:405)
SofaUnity.SofaContext.StartSofa () (at Assets/SofaUnity/Scripts/SofaContext.cs:312)
SofaUnity.SofaContext.Awake () (at Assets/SofaUnity/Scripts/SofaContext.cs:258)

解决步骤 #

• 修复字符串转换编码问题
  打开Assets/SofaUnity/Plugins/SofaUnityAPI/SofaContextAPI.cs定位到429行，修改字符串转换逻辑，添加错误处理：

  // 替换原字符串转换代码为：
  var encoding = Encoding.UTF8;
  var decoder = encoding.GetDecoder();
  char[] chars = new char[decoder.GetCharCount(byteData, 0, byteData.Length)];
  decoder.GetChars(byteData, 0, byteData.Length, chars, 0, true);
  string message = new string(chars);
  

  或者尝试使用系统默认编码兼容非UTF-8字符：

  string message = Encoding.Default.GetString(byteData);
  

• 临时禁用日志捕获
  打开Assets/SofaUnity/Scripts/SofaContext.cs找到DoCatchSofaMessages方法，注释掉调用DisplayMessages的代码，先确保插件能启动，后续再排查编码根源。

• 调整SOFA语言设置
  将SOFA运行环境的语言切换为英文，避免输出含非UTF-8编码的本地化日志，减少转换冲突。

内容的提问来源于stack exchange，提问作者Kaka_1111