Undefined method + for nil:NilClass

[GoogleCodeExporter]

What steps will reproduce the problem?
1. bjorn@amd64:~/dl/rubyripper-0.5.3$ sudo ./configure --enable-lang-all
--enable-gtk2 --enable-cli --prefix=/usr

What is the expected output? What do you see instead?
Expected output is a compiled program.  Instead, I get this:

./rr_lib.rb:19: undefined method `+' for nil:NilClass (NoMethodError)
    from ./configure:37:in `require'
    from ./configure:37

What version of rubyripper are you using? On what operating system? Are you
using the gtk2 or the commandline interface?
I tried to install .5.3 just now.  I was using the cli to install.  I am
using xubuntu 8.0.4 on an amd64 platform.  I haven't been able to install
rubyripper for over a year because of this issue, which has crossed several
versions.  I liked rubyripper.

Original issue reported on code.google.com by creepst...@gmail.com on 24 Sep 2008 at 6:01

[GoogleCodeExporter]

Please tell me, what does

1 --> irb
2 --> ENV['PWD']

return? In my case this would be:

bash-3.2$ irb
irb(main):001:0> ENV['PWD']
=> "/home/test"

Original comment by rubyripp...@gmail.com on 24 Sep 2008 at 9:14

[GoogleCodeExporter]

Oh how exciting, first let me congratulate you for making one of the best 
rippers for
POSIX!  I value your work, and I'll donate.  As for those commands, when typed 
into
terminal I receive 

bjorn@amd64:~$ irb
bash: irb: command not found
bjorn@amd64:~$ ENV['PWD']
bash: ENV[PWD]: command not found
bjorn@amd64:~$ 

on ubuntu 8.04.1, 64 bit.  I swear I installed all of the prereq's in README 
file!  
Bjorn

Original comment by creepst...@gmail.com on 27 Sep 2008 at 12:50

[GoogleCodeExporter]

including ruby? "irb" is the ruby interpreter. Somehow it doesn't show up on 
you system.

ok, let me know what happens if you give the command:

ruby -e 'puts ENV["PWD"]'

Original comment by rubyripp...@gmail.com on 27 Sep 2008 at 8:41

[GoogleCodeExporter]

I haven't heard any response for about a month. I expect the problem is already 
solved.

Original comment by rubyripp...@gmail.com on 25 Oct 2008 at 1:27

• Changed state: Fixed

[GoogleCodeExporter]

I get the same error when trying to

sudo ./configure --enable-lang-all --enable-gtk2 --enable-cli --prefix=/usr

jens@ubuntu:~/stuff/rubyripper-0.5.4$ sudo ./configure --enable-lang-all
--enable-gtk2 --enable-cli --prefix=/usr
./rr_lib.rb:19: undefined method `+' for nil:NilClass (NoMethodError)
    from ./configure:37:in `require'
    from ./configure:37

irb/Ruby interpreter is not installed, running Ruby 1.8 (could upgrade to 1.9 if
necessary).

pwd works fine (see below)

jens@ubuntu:~/stuff/rubyripper-0.5.4$ ruby -e 'puts ENV["PWD"]'
/home/jens/stuff/rubyripper-0.5.4

Any suggestions on where to look next?

Thanks,
Jens

Original comment by jens.kuelpmann@gmail.com on 31 Oct 2008 at 11:35

[GoogleCodeExporter]

What happens when you give the command:
ruby -e 'puts ENV["PWD"] + "/locale"'

I still suspect ruby isn't installed correctly. All that rr_lib.rb, line 19 
does is
concatenate two strings. Namely the result of ENV["PWD"] and "/locale".

Original comment by rubyripp...@gmail.com on 1 Nov 2008 at 1:01

[GoogleCodeExporter]

I am running Ubuntu Linux 8.10 "Intrepid Ibex" 64bit and installed ruby from the
Ubuntu repositories.

jens@ubuntu:~/stuff/rubyripper-0.5.4$ ruby --version
ruby 1.8.7 (2008-08-11 patchlevel 72) [i486-linux]

jens@ubuntu:~/stuff/rubyripper-0.5.4$ sudo ./configure --enable-lang-all
--enable-gtk2 --enable-cli --prefix=/usr
./rr_lib.rb:19: undefined method `+' for nil:NilClass (NoMethodError)
    from ./configure:37:in `require'
    from ./configure:37

jens@ubuntu:~/stuff/rubyripper-0.5.4$ ruby -e 'puts ENV["PWD"] + "/locale"'
/home/jens/stuff/rubyripper-0.5.4/locale

I also installed irb and tried the complete line of code:

jens@ubuntu:~/stuff/rubyripper-0.5.4$ irb
irb(main):001:0> LOCALE=[ENV['PWD'] + "/locale", "/usr/local/share/locale"]
=> ["/home/jens/stuff/rubyripper-0.5.4/locale", "/usr/local/share/locale"]

Works like a charm. Can't say that I'm not completely mystified.

Rubyripper runs fine when invoked directly btw. Just won't ./configure.

Thanks,
Jens

Original comment by jens.kuelpmann@gmail.com on 1 Nov 2008 at 3:21

[GoogleCodeExporter]

There is something weird going on here that needs further investigation. 
Reopened the
issue.

Original comment by rubyripp...@gmail.com on 1 Nov 2008 at 11:39

• Changed state: Accepted

[GoogleCodeExporter]

What happens when you leave the 'sudo' part out? You only need admin rights if 
you
type make install.

Original comment by rubyripp...@gmail.com on 2 Nov 2008 at 12:59

[GoogleCodeExporter]

Well ... look for yourself:

(sudo)
jens@jens@ubuntu:/usr/share/rubyripper$ sudo ./configure --enable-lang-all
--enable-gtk2 --enable-cli --prefix=/usr
[sudo] password for jens: 
./rr_lib.rb:19: undefined method `+' for nil:NilClass (NoMethodError)
    from ./configure:37:in `require'
    from ./configure:37

(normal user)
jens@ubuntu:/usr/share/rubyripper$ ./configure --enable-lang-all --enable-gtk2
--enable-cli --prefix=/usr
Checking the NEEDED dependencies....
cdparanoia found...

Checking the OPTIONAL dependencies...
Testing support for the graphical frontend...
ruby-gtk2 bindings found

Testing support for freedb metadata fetching...
cd-discid or discid found...

Testing support for ejecting the disk tray...
eject or disktutil found...

Testing support for different codecs on your system...
flac found...
oggenc (vorbis) found...
lame (mp3) found...

Testing support for replaygain...
wavegain NOT found.
vorbisgain NOT found.
mp3gain found...

Testing support for normalize...
normalize NOT found
Creating the Makefile...
A summary of your settings:

Using the following locations for install:
* Executables: /usr/bin
* Localization files: /usr/share/locale
* Icon file: /usr/share/icons/hicolor/128x128/apps
* Desktop file: /usr/share/applications
* Ruby library: /usr/lib/site_ruby/1.8

Gtk2 frontend will be installed
Cli frontend will be installed
Languages to be installed: nl, de, fr, hu, ru, es

You can now run make install
Make sure you've got the writing privileges

I feel more than a bit silly now O_o

Thanks for your time and the solution,
Jens

Original comment by jens.kuelpmann@gmail.com on 2 Nov 2008 at 5:54

[GoogleCodeExporter]

I'm glad this one is solved :)

Please don't hesitate to file a bug report next time. As long as it got the 
necessary
info in it, it's usefull anyhow. Some reports may be false alarm, but even then 
it
may help some other users in the future to narrow down their problem.

Fixed once again :D

Original comment by rubyripp...@gmail.com on 2 Nov 2008 at 9:52

• Changed state: Fixed