--- a/gameServer2/src/utils.rs	Sat Jan 14 00:46:52 2017 +0300
+++ b/gameServer2/src/utils.rs	Sat Jan 14 22:30:09 2017 +0300
@@ -1,4 +1,4 @@
 use mio;
 
-pub const PROTOCOL_VERSION : i32 = 3;
+pub const PROTOCOL_VERSION : u32 = 3;
 pub const SERVER: mio::Token = mio::Token(1000000000 + 0);