missing pkg-descr错误

１、

Some more things to check:

* Is the pkg-descr file in the ports directory
* what does 'make -V DESCR' say where the pkg-descr file should be located.

２、
Things to check:

* /etc/make.conf -- you may have some variables defined in there
  which are breaking things.
* Make sure you're not setting MASTERDIR or PKGDIR or DESCR
  anywhere.
* Whether or not you have a shell alias for "make"
* If your /usr/ports/Mk/* files are corrupt or invalid in
  some way.  Here's a list of current ones as of Wed 13 Dec 2006
  20:33:19 PST and their MD5s: