Devin M.

Hey @yunacu, I believe the standard size for a float in C# is 32 bits, so the invalid cast you are seeing is in attempting to cast a 64 bit...

If you are getting an invalid cast on callback invocation then whatever is getting passed to callback must not be a `RosMessageTypes.Std.Float64MultiArrayMsg`. Can you use a breakpoint to stop execution...

I encountered this issue when my gitattributes file had windows-style line endings but I was executing my 'git bigstore pull' from a linux terminal. I fixed it by changing 'line'...

> Is there a reason this can't be released to the ROS Build Farm using the typical [package release process](http://wiki.ros.org/ROS/ReleasingAPackage) instead of requiring people to manually build the package? @JWhitleyWork...