fix build error

SmallChi · Jun 16, 2024 · 1173c2b · 1173c2b
1 parent f86e943
commit 1173c2b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/JT809.Protocol/MessagePack/JT809MessagePackReader.cs b/src/JT809.Protocol/MessagePack/JT809MessagePackReader.cs
@@ -76,7 +76,7 @@ public void Decode(Span<byte> allocateBuffer)
                 allocateBuffer[offset++] = tmp;
             }
             Reader = allocateBuffer.Slice(0, offset);
-            _realCheckCRCCode = (ushort)((Reader[^3] << 8) | Reader[^2]);
+            _realCheckCRCCode = (ushort)((Reader[Reader.Length - 3] << 8) | Reader[Reader.Length - 2]);
             _checkCRCCodeVali = _calculateCheckCRCCode == _realCheckCRCCode;
             _decoded = true;
         }