I've tried, but this didn't solve the problem. The folder 'bit' stays empty.
So i think that other things were wrong as well.
So i toke the decision of formatting the machine. And installing the 8.10-RC1.
And ....... now it's working! I can control my lights with my android phone!
Somewhere along the way, the update wasn't done correctly apparently.
Now adding all my lights, checking out the different skins....