dtas-console doesn't work on my system

[Rene Maurer]

Since now I have never used 'dtas-console'. I have tried it the first
time and it doesn't work:

| dtas-conole

| /usr/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in
| `require': cannot load such file -- curses (LoadError)

| from /usr/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in
| `require'

| from /home/rene/.gem/ruby/2.1.0/gems/dtas-0.7.0/bin/dtas-console:9:in
| `<top (required)>'

| from /home/rene/.gem/ruby/2.1.0/bin/dtas-console:23:in `load'
| from /home/rene/.gem/ruby/2.1.0/bin/dtas-console:23:in `<main>'

Other dtas components (dtas-player, dtas-ctl, dtas-enq) work fine.

Any hints are very welcome.

Best, René