升级框架版本

Assets/Scripts/NBC~/Runtime/Plugins~/Protobuf-net/ProtoException.cs

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+using System;
+
+#if PLAT_BINARYFORMATTER && !(COREFX || PROFILE259)
+using System.Runtime.Serialization;
+#endif
+namespace ProtoBuf
+{
+    /// <summary>
+    /// Indicates an error during serialization/deserialization of a proto stream.
+    /// </summary>
+#if PLAT_BINARYFORMATTER && !(COREFX || PROFILE259)
+    [Serializable]
+#endif
+    public class ProtoException : Exception
+    {
+        /// <summary>Creates a new ProtoException instance.</summary>
+        public ProtoException() { }
+
+        /// <summary>Creates a new ProtoException instance.</summary>
+        public ProtoException(string message) : base(message) { }
+
+        /// <summary>Creates a new ProtoException instance.</summary>
+        public ProtoException(string message, Exception innerException) : base(message, innerException) { }
+
+#if PLAT_BINARYFORMATTER && !(COREFX || PROFILE259)
+        /// <summary>Creates a new ProtoException instance.</summary>
+        protected ProtoException(SerializationInfo info, StreamingContext context) : base(info, context) { }
+#endif
+    }
+}