Build SS7MAPer from src，it occurs “fatal error: ei.h: No such file or directory”

[allstable]

I tried to build SS7MAPer from src to set it up . But when I execute the command of “Build the code”，that is “rebar co”，it issues：
Compiling /root/apps/ss7Mapper/ss7MAPer/deps/epcap/c_src/epcap.c
/root/apps/ss7Mapper/ss7MAPer/deps/epcap/c_src/epcap.c:32:10: fatal error: ei.h: No such file or directory
#include <ei.h>
^~~~~~
compilation terminated.
ERROR: compile failed while processing /root/apps/ss7Mapper/ss7MAPer/deps/epcap: rebar_abort

How can i handle this problem？Any suggestion？Thanks.

[allstable]

I tried to build SS7MAPer from src to set it up . But when I execute the command of “Build the code”，that is “rebar co”，it issues：
Compiling /root/apps/ss7Mapper/ss7MAPer/deps/epcap/c_src/epcap.c
/root/apps/ss7Mapper/ss7MAPer/deps/epcap/c_src/epcap.c:32:10: fatal error: ei.h: No such file or directory
#include <ei.h>
^~~~~~
compilation terminated.
ERROR: compile failed while processing /root/apps/ss7Mapper/ss7MAPer/deps/epcap: rebar_abort

How can i handle this problem？Any suggestion？Thanks.

OK，Thanks，I got the answer at #8 error ei.h #8