Using even empty chart (or anything from examples)
<d3:Chart>
<d3:LineGraph x:Name="linegraph" Description="Simple linegraph"/>
</d3:Chart>
Will display plenty of binding errors after running the program:

Charts themselves work fine, but its hard to debug with so many errors around, hard to tell which one are real.
P.S
I have posted this issue before today, but I lost access to my email, so couldn't log in any more (amazing forced 2 step authentication), and for some reason this issue is gone, so I'm posting this again.