[Rd] install.packages from own rpository - depencies

[Knut Krueger]

I am trying to setup a respository for students with a own package.
Its working fine when the depended packages are already installed with:
install.packages("mypackage", 
type="source",repos="http://myrepository.example.com")

but if the the dependencies are not already installed I get the 
following error:
ERROR: dependencies 'igraph', 'chron', 'gdata' are not available for 
package 'mypackage'
* removing 'C:/.../mypackage'