Hi, I'm try to run the book sample, got same error.

go version go1.0.2

~/gocode/src go build -o ../bin/rev github.com/robfig/revel/cmd
~/gocode/src ../bin/rev run github.com/robfig/revel/samples/booking
~
~ revel! http://robfig.github.com/revel
~
2012/09/10 23:17:01 run.go:38: Running app (dev): booking (/Users/Hong/gocode/src/github.com/robfig/revel/samples/booking)
ERROR 2012/09/10 23:17:01 template.go:192: Template compilation error (In errors/404.html around line 10):
function "include" not defined
INFO 2012/09/10 23:17:01 harness.go:104: Listening on :9000
2012/09/10 23:17:45 main.go:24: Running revel server
ERROR 2012/09/10 23:17:45 template.go:192: Template compilation error (In errors/404.html around line 10):
function "include" not defined
Open DB
Listening on port 49790...
ERROR 2012/09/10 23:17:46 template.go:192: Template compilation error (In errors/404.html around line 10):
function "include" not defined
ERROR 2012/09/10 23:17:46 template.go:192: Template compilation error (In errors/404.html around line 10):
function "include" not defined