message: "#import was not closed"

Hi, when compiling OTZmqCmdEA.mq4, I get these messages: 'OTMql4/OTLibLog.ex4' - #import was not closed OTLibLog.mqh 9 9 'OTMql4/OTLibStrings.ex4' - #import was not closed OTLibStrings.mqh 13 9 'OTMql4/OTLibSimpleFormatCmd.ex4' - #import was not closed OTLibSimpleFormatCmd.mqh 9 9 'OTMql4/OTLibJsonFormat.ex4' - #import was not closed OTLibJsonFormat.mqh 6 9 'OTMql4/OTZmqProcessCmd.ex4' - #import was not closed OTZmqProcessCmd.mqh 6 9 'OTMql4/ZmqSendReceive.ex4' - #import was not closed ZmqSendReceive.mqh 12 9

I did install the lib before and I think I've followed all installation steps listed on the Installation page (including Microsoft Visual C++ 2010 Redistributable Package (x64)).

My MT4 build is 971, origin is unknown, I think I have downloaded it from Metaquotes. I have to stay at 971 because of my Tickstory version. Windows version 7 SR1. Python v2.7.12, Zeromq v 4.2.0

Any help would be highly appreciated. Thanks Michael