Works for me now too! I presume it was my end, yup.

Having the same set of errors, or at least very similar.
I  am an abject newbie, and almost certainly did something wrong.
So I'll wipe those projects ans start over, saying what I did step by step, and you can say where I go wrong.

# I open ADT's eclipse, and ensure that HelloWorld-AE compiles and runs on my phone correctly.

# I have bones.zip and bones_android_demo.zip downloaded.

# I extract them into my workspace folder.

# In Eclipse, I click file->import->"Existing Projects into Workspace"->my workspace folder->Select root directory->Finish.

# I now have two new projects, "Bones" (with an orange "/!\" icon) and "Bones-Android-Ninja" (with a red "[X]" icon.

# I rightclick "Bones-Android-Ninja"->Properties->Android->Project Build Targer->Android 4.2 and click OK. The "[X]" icon disappears, replaced by an orange "/!\".

#With the "Bones-Android-Ninja" project selected, I Run As->Android Application->select my device->OK

# The screen of my device goes black, then "Sorry! The application Bones Ninja Demo (process bones.samples.android) has stopped unexpectedly. Please try again" -> "Force Close".

# The error messages as described above are given, though the full logcat messages are available if you would prefer.


My suspicion is that I'm using the wrong copy of Bones, but I don't see a Bones-AE for download anywhere. I am likely being blind.