Compiling the current Nmap 6.49BETA1 from the published tarball and the github repo I get the following error on Kali Linux x64:

root@kali:~/download/nmap# nmap -sV 192.168.14.0/24 Starting Nmap 6.49BETA1 ( http://nmap.org ) at 2015-06-05 11:56 CEST nmap: scan_engine_raw.cc:206: u16 UltraProbe::icmpid() const: Assertion mypspec.proto == IPPROTO_ICMP || mypspec.proto == IPPROTO_ICMPV6' failed.`

I can avoid this error by using "-Pn", so I suppose this is related to the ICMP sweep.