Example "magpi-cambot" does not work

[Gennady A]

I configured webiopi:

myscript=/home/mypi/webiopi/cambot.py

doc-root=/home/mypi/webiopi/

copied the files from the magpi-cambot example to /home/mypi/webiopi/ and launched webiopi:

sudo/etc/init.d/webiopi start

But when opening the Webiopi page in Firefox, I see that it is empty - there are no buttons. In Firefox Inspector I see an error:

Uncaught TypeError: w().GPIO[value] is undefined

map http://192.168.1.5/webiopi.js:233

init http://192.168.1.5/webiopi.js:207

How to fix it?