Error installing sass:invalid gem format for C:/Ruby193....

[JDev]

Hi, pomogite, ushe neskolko chasow ne mogu postawit sass 3.1.1

Proshu proshenija, netu kirilici na etom koputere.

C:\Ruby193\bin>gem install compass --version=0.11.1

Fetching: sass-3.1.10.gem (100%)
Fetching: compass-0.11.1.gem (100%)
Successfully installed sass-3.1.10
Successfully installed compass-0.11.1
2 gems installed
Installing ri documentation for sass-3.1.10...
Installing ri documentation for compass-0.11.1...
Installing RDoc documentation for sass-3.1.10...
Installing RDoc documentation for compass-0.11.1...

C:\Ruby193\bin>compass -v

Compass 0.11.1 (Antares)
Copyright (c) 2008-2011 Chris Eppstein
Released under the MIT License.
Compass is charityware.
Please make a tax deductable donation for a worthy cause: http://umdf.org/compass

C:\Ruby193\bin>sass -v

Sass 3.1.10 (Brainy Betty)

C:\Ruby193\bin>gem uninstall sass

You have requested to uninstall the gem:
        sass-3.1.10
compass-0.11.1 depends on [sass (~> 3.1)]
If you remove this gems, one or more dependencies will not be met.
Continue with Uninstall? [Yn]  y
Remove executables:
        sass, sass-convert, scss

in addition to the gem? [Yn]  y
Removing sass
Removing sass-convert
Removing scss
Successfully uninstalled sass-3.1.10

C:\Ruby193\bin>gem install sass --version=3.1.1

ERROR:  Error installing sass:
        invalid gem format for C:/Ruby193/lib/ruby/gems/1.9.1/cache/sass-3.1.1.gem

C:\Ruby193\bin>ruby -v
ruby 1.9.3p0 (2011-10-30) [i386-mingw32]

Thanks!