Ruby 1.9.1 gem command - can't find user for 500

Ruby
1

Has anyone else encountered this error or can suggest a way to correct
it?
These errors occur when running the gem command under ruby 1.9.1.
The same error occurs with a different user #(0) when run as root.
Under 1.8.6 and 1.8.7, no error occurs.

This is a fresh version of ruby built on a 64 bit machine
OS: Linux - Fedora Core 11

bash-/ruby-1.9.1-p243$ ruby -v
ruby 1.9.1p243 (2009-07-16 revision 24175) [i686-linux]
bash-/ruby-1.9.1-p243$ gem install rake
ERROR: While executing gem … (ArgumentError)
can’t find user for 500
bash-/ruby-1.9.1-p243$ gem list

*** LOCAL GEMS ***

ERROR: While executing gem … (ArgumentError)
can’t find user for 500

TIA for all replies,

– Steve D.

2

On Dec 3, 2009, at 10:51 , Steve D. wrote:

bash-/ruby-1.9.1-p243$ gem install rake
ERROR: While executing gem … (ArgumentError)
can’t find user for 500
bash-/ruby-1.9.1-p243$ gem list

*** LOCAL GEMS ***

ERROR: While executing gem … (ArgumentError)
can’t find user for 500

no clue. run with --debug and/or --backtrace

that said… 1.9 ships with rake, so there is no reason to install it.

3

On Fri, 4 Dec 2009 04:23:13 +0900
Ryan D. [email protected] wrote:

can’t find user for 500

no clue. run with --debug and/or --backtrace

that said… 1.9 ships with rake, so there is no reason to install it.

Ryan,

OK. “gem install rake” was a bad choice, since it was included in 1.9.1.
The same result happened with every other gem I attempted to install.
The debug output indicated that there were library issues.

I reinstalled multiruby
(http://blog.robseaman.com/2008/12/20/switching-between-ruby-1-8-1-9-with-multiruby)
and the problem seems to have gone away. I wish I had more time to
explore the “can’t find user for xxx” message, but I believe it to be a
side effect related to 32/64 bit library issues.

Now I just have to reinstall gems to all 3 ruby versions…

BTW, thanks for the laughs at the “Worst. Ideas. Ever.” presentation at
RubyConf.