Hi,
I got a similar error after performing a clean install of IR 1.1.1 with the
Visual Studio Tools under XP SP3 (Swedish with MUI), and might have a
workaround (see below).
Orion Edwards wrote:
After upgrading to IronRuby 1.1.1, I try run IIRB, and I get the
following exception:
[snip]
mscorlib:0:in `Throw': Unable to translate bytes [B8] at index 2 from
specified code page to Unicode. (System::Text::Dec
oderFallbackException)
from mscorlib:0:in `Fallback'
from mscorlib:0:in `InternalFallback'
from mscorlib:0:in `GetCharCount'
from mscorlib:0:in `GetCharCount'
from mscorlib:0:in `GetChars'
from
C:/Dev/TEST/ruby/Lib/ruby/site_ruby/1.9.1/rbreadline.rb:1845:in `[]'
from
[snip rest of callstack]
Here's what I got:
--------------------------
C:\foo\bar>iirb
mscorlib:0:in `Throw': Unable to translate bytes [84] at index 0 from
specified code page to Unicode. (System::Text::DecoderFallback
Exception)
from mscorlib:0:in `Fallback'
from mscorlib:0:in `InternalFallback'
from mscorlib:0:in `GetCharCount'
from mscorlib:0:in `GetCharCount'
from mscorlib:0:in `GetChars'
from C:/Program/IronRuby
1.1/Lib/ruby/site_ruby/1.9.1/rbreadline.rb:1845:in `[]'
from C:/Program/IronRuby
1.1/Lib/ruby/site_ruby/1.9.1/rbreadline.rb:1845:in `_rl_get_screen_size'
from C:/Program/IronRuby
1.1/Lib/ruby/site_ruby/1.9.1/rbreadline.rb:1975:in `_rl_init_terminal_io'
from C:/Program/IronRuby
1.1/Lib/ruby/site_ruby/1.9.1/rbreadline.rb:2491:in
`readline_initialize_everything'
from C:/Program/IronRuby
1.1/Lib/ruby/site_ruby/1.9.1/rbreadline.rb:3726:in `rl_initialize'
from C:/Program/IronRuby
1.1/Lib/ruby/site_ruby/1.9.1/rbreadline.rb:4720:in `readline'
from C:/Program/IronRuby
1.1/Lib/ruby/site_ruby/1.9.1/readline.rb:40:in `readline'
from C:/Program/IronRuby
1.1/Lib/ruby/1.9.1/irb/input-method.rb:115:in `gets'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb.rb:139:in
`eval_input'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb.rb:273:in
`signal_status'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb.rb:138:in
`eval_input'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb/ruby-lex.rb:188:in
`[]'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb/ruby-lex.rb:188:in
`buf_input'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb/ruby-lex.rb:103:in
`getc'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb/slex.rb:205:in
`match_io'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb/slex.rb:75:in
`match'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb/ruby-lex.rb:286:in
`token'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb/ruby-lex.rb:262:in
`lex'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb/ruby-lex.rb:233:in
`each_top_level_statement'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb/ruby-lex.rb:229:in
`loop'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb/ruby-lex.rb:229:in
`each_top_level_statement'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb/ruby-lex.rb:228:in
`catch'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb/ruby-lex.rb:228:in
`each_top_level_statement'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb.rb:155:in
`eval_input'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb.rb:70:in `start'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb.rb:69:in `catch'
from C:/Program/IronRuby 1.1/Lib/ruby/1.9.1/irb.rb:69:in `start'
from C:/Program/IronRuby 1.1/bin/irb:13
--------------------------
The funny thing was, that if I opened a command prompt as an administrator
(e.g. runas /user:<admin> cmd) and ran iirb it worked. I originally thought
it had something to do with privileges (and it still might), but what seemed
to work around the problem was resetting the Command Window size and buffer
size(!) for the current user to the default values of 80x25, 80x300 (the
_rl_get_screen_size in the stack trace gave me the hint):
---------------------------
C:\foo\bar>iirb
irb(main):001:0> puts 'Hello World'
Hello World
=> nil
irb(main):002:0>
---------------------------
Good luck / Johan
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