e168f08 - Latest Comments in Assignment 0

Re: Assignment 0

MJG — Mon, 29 Sep 2008 16:26:49 -0000

oops - sorry initially I thought you were referring to this screencast: http://blip.tv/file/48664
Thanks for your help!

Re: Assignment 0

jgn — Mon, 29 Sep 2008 12:49:18 -0000

Eh? The screencast I made should show sqlite3 going into C:\Sqlite3 or some such --- http://e168f08.plugh.org/sc...

Re: Assignment 0

MJG — Mon, 29 Sep 2008 12:37:32 -0000

Thank you its working now - the screencast says to place the files into the Ruby>Bin directory, however that didn't work for me so I did what you suggested above (place the three files into the sqlite3 directory created by the gem install, changed the path) and now versions.rb runs without generating that error.

Re: Assignment 0

jgn — Mon, 29 Sep 2008 11:38:03 -0000

Here are some questions and suggestions:

0. If you are local and you're on a laptop, bring it to section.
1. What happens when you type "sqlite3" into the DOS prompt? Does that work?
2. Review the screencast, and consider installing Sqlite3 the way it is done there. Incidentally, there is also a .def file -- did you put that in ruby/bin as well? In any case, I think you'll be happier in the long run if you put sqlite3 in its own directory and change your path (see the screencast).

Re: Assignment 0

MJG — Mon, 29 Sep 2008 11:11:08 -0000

I'm getting this error when running versions.rb:

C:\Ruby\bin>versions.rb
require failed: 127: The specified procedure could not be found. - Init_sqlite3./sqlite3.dll
----- Software version check at Tue Sep 23 14:41:20 -0400 2008
Ruby: 1.8.6
RubyGems: 1.2.0
Rails: 2.1.1
Mongrel: 1.1.5
Sqlite: 3.6.3
*** LOCAL GEMS ***
actionmailer (2.1.1)
actionpack (2.1.1)
activerecord (2.1.1)
activeresource (2.1.1)
activesupport (2.1.1)
cgi_multipart_eof_fix (2.5.0)
fxri (0.3.6)
fxruby (1.6.16)
gem_plugin (0.2.3)
hoe (1.7.0)
hpricot (0.6)
log4r (1.0.5)
mongrel (1.1.5)
ptools (1.1.6)
rails (2.1.1)
rake (0.8.2)
ruby-opengl (0.60.0)
rubyforge (1.0.0)
sqlite-ruby (2.2.3)
sqlite3-ruby (1.2.3)
test-unit (2.0.0)
win32-api (1.2.0)
win32-clipboard (0.4.4)
win32-dir (0.3.2)
win32-eventlog (0.5.0)
win32-file (0.5.5)
win32-file-stat (1.3.1)
win32-process (0.5.9)
win32-sapi (0.1.4)
win32-sound (0.4.1)
windows-api (0.2.4)
windows-pr (0.9.3)

I placed both the sqlite3.dll and the sqlite3.exe into the ruby/bin directory and installed the gem without issue so I'm unsure why this error is occurring. I would greatly appreciate any suggestions or help anyone might have.

Re: Assignment 0

SA — Sat, 27 Sep 2008 12:03:10 -0000

I got the problem fixed. I reinstalled ruby on windows, and somehow it worked the second time.

Re: Assignment 0

jgn — Sat, 27 Sep 2008 07:30:29 -0000

How did you install Rails? Can you find the rails command on your disk?

Windows? OSX? Linux? Help us out!

Re: Assignment 0

SA — Sat, 27 Sep 2008 02:59:25 -0000

I have installed everything, but when I type rails test or rails assn0, I get an error that there is no inernal command as rails. My ruby script/server is not running either.

Re: Assignment 0

Felipe Loya — Sat, 27 Sep 2008 01:58:55 -0000

Thanks for your help, I got it working with: gem install --version 1.2.3 sqlite3-ruby .

Re: Assignment 0

jgn — Fri, 26 Sep 2008 20:20:53 -0000

Two things:

(1) I say about, if you have issues with the sqlite3-ruby gem, try an earlier version:

gem install --version 1.2.3 sqlite3-ruby

(that's two dashes)

(2) If it still doesn't work: What is very very likely to be happening is that something is objecting to the spaces in the path.

I would strongly suggest that you install everything at the root. I.e., Ruby should be in C:\Ruby, Sqlite3 in C:\sqlite3, etc.

John

Re: Assignment 0

Felipe Loya — Fri, 26 Sep 2008 20:15:38 -0000

Hi, I installed Ruby One-Click Installer with no problem using my Laptop running Win2000. However, when I tried to install sqlit3 3.6.3 it gives me the following error:

C:\Documents and Settings\floya\Desktop\Harvard\CSCI E-168 Fall 2008\Ruby\bin>
gem install sqlite3-ruby
Building native extensions. This could take a while...
ERROR: Error installing sqlite3-ruby:
ERROR: Failed to build gem native extension.

C:/Documents and Settings/floya/Desktop/Harvard/CSCI E-168 Fall 2008/Ruby/bin/ruby.exe extconf.rb install sqlite3-ruby
'C:/Documents' is not recognized as an internal or external command,operable program or batch file.

Gem files will remain installed in C:/Documents and Settings/floya/Desktop/Harva
rd/CSCI E-168 Fall 2008/Ruby/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.4 for inspection.
Results logged to C:/Documents and Settings/floya/Desktop/Harvard/CSCI E-168 Fall 2008/Ruby/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.4/ext/sqlite3_api/gem_make.out

I followed all instructions from the video, still no positive results. Any suggestions to solve this problem? Thanks.

Re: Assignment 0

bob d — Wed, 24 Sep 2008 21:57:26 -0000

I changed versions.rb to puts `gem.bat list` and it worked.

As C&C Music factory would say "things that make you say hmmmm" !

Re: Assignment 0

bob d — Wed, 24 Sep 2008 21:51:15 -0000

The ruby versions.rb works on my laptop, but thwn I do the same exact steps on my desktop I get:

And . . . Connect to Sqlite says version is: 3.6.2
versions.rb:33:in ``': Exec format error - gem list (Errno::ENOEXEC)
from versions.rb:33

Anyone else get this error ?

Re: Assignment 0

katemuse — Tue, 23 Sep 2008 22:49:07 -0000

An older version of XCode on my Mac prevented me from installing sqlite3-- "C compiler cannot create executables" was the error at the configure stage. Only after I updated XCode did the install run smoothly.

Re: Assignment 0

jgn — Mon, 22 Sep 2008 20:54:34 -0000

Thanks!

Re: Assignment 0

Mario — Mon, 22 Sep 2008 20:45:48 -0000

Fedora 9 Linux : For those of us that don't know when to quit, you should install ruby-devel , as well as GCC , in addition to the standard RPMs ( ruby , ruby-lib , ... )

# yum install gcc
# yum install ruby-devel

ruby-devel includes the 'ruby.h' file which was preventing my proper installation of Mongrel and FastThread .

[mmm.lkjlkj.net:~] # grep -i ruby rpm.list.txt
rubygems-0.9.4-1.fc8.noarch
ruby-ri-1.8.6.230-4.fc9.i386
ruby-irb-1.8.6.230-4.fc9.i386
ruby-libs-1.8.6.230-4.fc9.i386
ruby-1.8.6.230-4.fc9.i386
ruby-rdoc-1.8.6.230-4.fc9.i386
ruby-devel-1.8.6.230-4.fc9.i386
[mmm.lkjlkj.net:~] #

Re: Assignment 0

nocsav — Mon, 22 Sep 2008 17:11:35 -0000

Thanks for the tip! It turned out I had two versions of rails installed by mistake. I didn't have gems in my PATH, so I ended up getting 2.0.2 from /bin.

Re: Assignment 0

jgn — Mon, 22 Sep 2008 16:25:31 -0000

You need to bump up your version of Rails. Do

gem update rails

Then new apps should get Sqlite3 not MySQL.

Re: Assignment 0

nocsav — Mon, 22 Sep 2008 16:17:35 -0000

Ruby version 1.8.6 (x86_64-linux)
RubyGems version 1.1.1
Rails version 2.0.2

Re: Assignment 0

jgn — Mon, 22 Sep 2008 16:10:54 -0000

For your Linux setup: What are you currently getting for

rails -v
sudo gem -v

Re: Assignment 0

nocsav — Mon, 22 Sep 2008 16:02:14 -0000

I've been doing assignment 0 on Ubuntu Linux.

I had to install a couple of extra packages to get mine working:
$ sudo apt-get install ruby1.8-dev
$ sudo apt-get install rails

Also, I had to run "rails" with a special argument to force it to use sqlite3. By default, it tried using MySQL.

$ rails -D sqlite3 assn0

Hope this helps...

Re: Assignment 0

cyberwisdom — Mon, 22 Sep 2008 00:57:48 -0000

I got a very similar error in Mac OS X Leopard (10.5) and wanted to post the solution in case someone else runs into the same problem:
-----------------------------------------------------------------------
mymachostname$ sudo gem install sqlite3-ruby

Building native extensions. This could take a while...
ERROR: Error installing sqlite3-ruby:
ERROR: Failed to build gem native extension.

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb install sqlite3-ruby
can't find header files for ruby.

Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/sqlite3-ruby-1.2.4 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/sqlite3-ruby-1.2.4/ext/sqlite3_api/gem_make.out
-----------------------------------------------------------------------
SOLUTION: I fixed it after I found this similar error in the Ruby Forums:
http://railsforum.com/viewt...

After installing Xcode, it magically worked. Beware that Xcode is a 1GB DVD sized download. Also, I had to register for an Apple Developer account to download.

Another note worth mentioning: AWDR says to go to http://darwinports.com/inst... to install darwin ports. However, the site has been down for a few days and now it's back online, but the downloads are still not working. So I may have resolved it quicker with darwin ports, but it's still not available.

I still think Xcode was worth it since it's in the list of IDE's in AWDR. I'm gonna give it try along with the other ones.

Re: Assignment 0

Morris — Sun, 21 Sep 2008 22:35:23 -0000

Thanks for mentioning this, David.
I didn't have to uninstall anything. I merely shut down my system on Friday, and after booting this evening, when I tried installing the mongrel gem again, it installed with no problems at all.

Re: Assignment 0

Morris — Sun, 21 Sep 2008 22:32:46 -0000

Yes.

C:\>gem --version
1.2.0

The problem seems to have been the one DavidLo reports, below.

Re: Assignment 0

DavidLo — Sun, 21 Sep 2008 19:09:17 -0000

I’m using Windows XP SP 3.

I had great difficulty with the Zlib::BufError problem. It would even happen running “gem update –system” a second time.

Finally I uninstalled everything to start again (remembering to also delete the .gem directory in my windows home directory "\Documents and Settings\myname").

The solution that worked for me was to reboot after each and every gem update operation. I don’t know why that worked but it did (and nothing else had). This problem is discussed extensively on the web but there’s no universal solution.