I've configured a the sample website (http://vibed.org/docs) but ran
into linker errors even though all dependencies seems to have installed
correctly. Any suggestions?

www@localhost:~/dtutor$ dub
Checking dependencies in '/home/www/dtutor'
The following changes could be performed:
Install vibe-d ~master, userWide
Install libevent ~master, userWide
Install libev ~master, userWide
Install openssl ~master, userWide
Downloading vibe-d ~master...
Installing vibe-d ~master...
vibe-d has been installed with version ~master
Downloading libevent ~master...
Installing libevent ~master...
libevent has been installed with version ~master
Downloading libev ~master...
Installing libev ~master...
libev has been installed with version ~master
Downloading openssl ~master...
Installing openssl ~master...
openssl has been installed with version ~master
You are up to date
Building configuration "application", build type debug
Running dmd (compile)...
Compiling diet template 'index.dt' (compat)...
Linking...
/usr/bin/ld: cannot find -lev
collect2: error: ld returned 1 exit status
--- errorlevel 1

Thanks,
Andrew