Eclipse debug QEMU zephyr fail.

[zhouchuanfu]

Debug message is follow:

[0/1] To exit from QEMU enter: 'CTRL+a, x'[QEMU] CPU: cortex-m3
qemu-system-arm: warning: nic stellaris_enet.0 has no peer
qemu-system-arm: -s: Failed to find an available port: Address already in use
FAILED: zephyr/CMakeFiles/debugserver
cd /home/fu/eclipse-workspace/hello_world/build && /home/fu/zephyr-sdk/sysroots/x86_64-pokysdk-linux/usr/bin/qemu-system-arm -cpu cortex-m3 -machine lm3s6965evb -nographic -vga none -net none -pidfile qemu.pid -chardev stdio,id=con,mux=on -serial chardev:con -mon chardev=con,mode=readline -icount shift=6,align=off,sleep=off -rtc clock=vm -s -S -kernel /home/fu/eclipse-workspace/hello_world/build/zephyr/zephyr.elf
ninja: build stopped: subcommand failed.

Debug Environment:
zephyr-sdk-0.11.4.
project is eclipse newly create "hello world".

Please help me solve this problem.Thanks!