Can't Build ArduCopter on SkyViper v2450

Hello! I’m having trouble with building the firmware for Skyviper 2450

So, I simply followed the instructions in this site (http://ardupilot.org/dev/docs/skyviper.html), however I cant seem to build it.

I cloned the codes first using (Ubuntu)

git clone https://github.com/SkyRocketToys/ardupilot

Then

cd ardupilot
git checkout skyviper-latest
git submodule update --init --recursive
./waf configure --board=px4-v3 (i also tried --board=skyviper-v2450, but it didnt work for the next step either)

However in this next step:

./waf build --target=bin/arducopter

I keep getting an error that said:

Build failed

Traceback (most recent call last):

File “/home/uavdlsu/ardupilot/modules/waf/waflib/Runner.py”, line 270, in task_status

return tsk.runnable_status()

File “Tools/ardupilotwaf/git_submodule.py”, line 90, in runnable_status
if not self.is_fast_forward(path):
File “Tools/ardupilotwaf/git_submodule.py”, line 68, in is_fast_forward
out = bld.cmd_and_log(cmd, quiet=Context.BOTH, cwd=cwd)
File “/home/uavdlsu/ardupilot/modules/waf/waflib/Context.py”, line 453, in cmd_and_log
raise e
WafError: Command (’/usr/bin/git’, ‘merge-base’, ‘1472b16c36e37312b722fbe4540e48b39abfa23a’, ‘574dfe9e2d947e3d5d7acd50033b56798a14fc1f’) returned 128

Any help would be appreciated. Thanks!

Exactly the same problem here.