Error: Unable to execute port: can't read "build.cmd": Failed to locate 'make' in path: '/opt/local/bin:/opt/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin'

[gerrit.alex@…]

Last login: Sat Apr 23 22:36:27 on console
imacosx-5:~ nagelfaehre$ which port
/opt/local/bin/port
imacosx-5:~ nagelfaehre$ port selfupdate
--->  Updating the ports tree
Error: Synchronization of the local ports tree failed doing rsync
Error: /opt/local/bin/port: port selfupdate failed: Couldn't sync the ports tree: Synchronization of 1 source(s) failed
imacosx-5:~ nagelfaehre$ sudo port install wine-devel
Password:
--->  Computing dependencies for wine-develError: Unable to execute port: can't read "build.cmd": Failed to locate 'make' in path: '/opt/local/bin:/opt/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin' or at its MacPorts configuration time location, did you move it?
To report a bug, see <http://guide.macports.org/#project.tickets>
imacosx-5:~ nagelfaehre$ 

[gerrit.alex@…]

Trying to install Trackmania Nations Forever following this guide: ​http://www.gingedas.net/node/272 XCode IS installed, MacPort also. My Mac is the same as in the guide description (Snow Leopard 10.6.6).

[ryandesign (Ryan Carsten Schmidt)]

Xcode is not installed properly. Please reinstall it, making sure the Unix Development checkbox is not deselected.