Description Resource Path Location Type
make: * Config file '' does not exist -- add the OMNeT++ bin directory to the path so that opp_configfilepath can be found, or set the OMNETPP_CONFIGFILE variable to point to Makefile.inc. Stop. Makefile /IWF line 55 C/C++ Problem**
I had the same problem with OMNET++ 4.3.1, it turns out that i extracted the omnet source files to C:\Omnet rather than the default expected location c:/omnetpp-4.3.1 by the make script. So when you try to build the mixim, the build stops by giving two errors one of them being
To solve this issue, navigate to mixim(or whatever folder)>out>gcc-debug>.last-copts or you can search your workspace for something like omnetpp-4.3.1, remember the version, to locate the file. Then just change -Ic:/omnetpp-4../include to exact directory path where you have extracted omnet++.