library("ReporteRs") error: object 'readPNG' was not exported by 'namespace:png'

Question

I've been trying to load library("ReporteRs"), but to no avail.

It returns the error:

package or namespace load failed for ‘ReporteRs’
object 'readPNG' was not exported by 'namespace:png'

I have been able to load rJava, ReporteRsjars and png. Do you know what could be the problem?

Thanks a lot!