Why can't I install wine?

[Dennis Wicks <wix@mgssub.com>]

I am running Jessie and it is up-to-date. When I try to
install wine I get:

> The following NEW packages will be installed:
>   fonts-horai-umefont{a} fonts-unfonts-core{a} libcapi20-3{a} libgphoto2-port12{a} libosmesa6{ab} p7zip{a} wine wine1.9 
>   wine1.9-i386{ab} winetricks{a} 
> 0 packages upgraded, 10 newly installed, 0 to remove and 11 not upgraded.
> Need to get 41.4 MB of archives. After unpacking 284 MB will be used.
> The following packages have unmet dependencies:
>  wine1.9-i386 : Depends: libgphoto2-6 (>= 2.5.10) but 2.5.4-1.1+b2 is installed.
>  libosmesa6 : Depends: libnettle6 which is a virtual package.
> The following actions will resolve these dependencies:
> 
>      Keep the following packages at their current version:
> 1)     libosmesa6 [Not Installed]                         
> 2)     wine [Not Installed]                               
> 3)     wine1.9 [Not Installed]                            
> 4)     wine1.9-i386 [Not Installed]                       
> 

And this solution installs nothing! I don't know how to get
out of this. There must be a mistake somewhere. How could
this situation get into the production release? How do I fix it?

Many TIA!!
Dennis