I can’t help but notice that your Activity name is couk.doridori.goigoFull.Board but your missing custom View class is couk.doridori.goigo.customUI.GoBoardView … it looks like you might have two different packages (goigo vs goigoFull).
Are you by any chance doing clever things with library projects? You’ll want to be really careful with fully-qualified classnames in code and in layout xml…
(If not please add some more information about your project setup and also paste your layout XML which the layoutinflater is choking on)