Thinking more...

謝謝你，Dale E. Moore：[MonoDevelop] Can't keep monodevelop running
信內所提供的方法，真是相當簡單又快速，也讓我學到 apt-get 的另外一個用法：build-dep

sudo apt-get build-dep mono monodevelop
Download mono-1.2.5.2.tar.bz2<http://go-mono.com/sources/mono/mono-1.2.5.2.tar.bz2>and monodevelop-0.17.tar.bz2<http://go-mono.com/sources/monodevelop/monodevelop-0.17.tar.bz2>from http://go-mono.com/sources-stable/.

bunzip2 mono-1.2.5.2.tar.bz2
tar xvf mono-1.2.5.2.tar.bz2
cd mono-1.2.5.2
./configure --prefix=`pkg-config --variable=prefix mono`
make
sudo make install

bunzip2 monodevelop-0.17.tar.bz2
tar xvf monodevelop-0.17.tar
cd monodevelop-0.17
./configure --prefix=`pkg-config --variable=prefix mono`
make
sudo make install