"RubyGems are not installed for a platform"

[Morris Jones]

On the Ruby Platform Manager, I'm struggling to get Netbeans to use the
locally installed Ruby. It finds my ruby 1.8.6 executable, but it
doesn't find the gems.

In Gem Home, the Browse button is greyed out, and the message in red
says <RubyGems are not installed for a platform>. "*A* platform?" What
does this mean? Not installed for _this_ platform, or not installed for
_any_ platform? It's clearly wrong, because RubyGems _are_ installed
for this platform.

Adding the path to my installed gems repository
(/usr/local/ruby-1.8.6/lib/ruby/gems/1.8/gems/) seems to do no good. I
get a nonsensical dialog box that says
"/usr/local/ruby-1.8.6/lib/ruby/gems/1.8/gems" is non-empty existing
directory and does not seem to be a valid RubyGems repository.

Any clues?

Mojo
--
Morris Jones
http://www.whiteoaks.com
Old Town Sidewalk Astronomers http://www.otastro.org
http://twitter.com/mojo_la

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[Martin Krauskopf]

Morris Jones wrote:

[tillmo]

I am using Netbeans 6.5 with Ubuntu 9.04. I have the same problem: in Gem Home, the Browse button is greyed out, and when creating a rails project, I get:

Platform "Ruby1.8.7-p72" does not have a valid RubyGems installation.

Below the output of "gem env", and attached the log file.

Best,
Till

RubyGems Environment:
- RUBYGEMS VERSION: 1.3.1
- RUBY VERSION: 1.8.7 (2008-08-11 patchlevel 72) [i486-linux]
- INSTALLATION DIRECTORY: /var/lib/gems/1.8
- RUBY EXECUTABLE: /usr/bin/ruby1.8
- EXECUTABLE DIRECTORY: /var/lib/gems/1.8/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86-linux
- GEM PATHS:
- /var/lib/gems/1.8
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://gems.rubyforge.org/

[Erno Mononen]

Hi Till,

Seems to be a bug - as a workaround installing the default bundled
platform, i.e. the 'JRuby and Rails distribution' plugin may help. You
don't need to use it for anything, just that the absence of the default
platform has caused some issues in the past. Also, can you try whether
it works for you in 6.7 dev
(http://wiki.netbeans.org/RubyInstallation#section-RubyInstallation-GettingADevelopmentBuild)?

Thanks,
Erno


tillmo wrote:

[tillmo]

Hi Erno,

many thanks for your hints.

Actually, both 6.5 with JRuby (but not with Ruby1.8 ) and 6.7-dev (with both JRuby and Ruby1.8 ) work. The latter has the advantage that I can also start a server via Netbeans (this does not work for me with JRuby). However, I am wondering how stable the developer version actually is.

All the best,
Till