connect refused, based on lastest software

[luoabc]

Currently, I'm trying to use the FAWN-KV. but after setup, it can't work.

the compile
autoreconf -is
./configure
make

then,

cd fawnkv; ./manager 127.0.0.1 -j
cd fawnkv; ./backend -m 127.0.0.1 -i 127.0.0.1 -p 8000 -j
cd lib/cpp; ./tester -c 127.0.0.1 -p 10000 127.0.0.1

But it enter to the loop of "connecting to 127.0.0.1:8000"

Would you mind give me some suggestion?