# Aiuto Error loading RubyGems plugin

**URL:** <https://www.ruby-forum.com/t/aiuto-error-loading-rubygems-plugin/226365>\
**Category:** IT\
**Created:** [July 21, 2012, 10:35pm UTC](https://www.ruby-forum.com/t/aiuto-error-loading-rubygems-plugin/226365 "2012-07-21T22:35:17Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![matteoredaelli](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/d2c977/32.png) [@matteoredaelli](https://www.ruby-forum.com/u/matteoredaelli)\
**Post date:** [July 21, 2012, 10:35pm UTC](https://www.ruby-forum.com/t/aiuto-error-loading-rubygems-plugin/226365/1 "2012-07-21T22:35:17Z")

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ciao a tutti utenti del forum! questo è il mio primo topic 🙂  
allora devo installare la gem per usare ruby insieme a Mysql,ma quando  
accedo al terminale e inserisco il comando mi compare il seguente  
messaggio di errore:

Error loading RubyGems plugin  
“/usr/local/rvm/gems/ruby-1.9.2-p318@global/gems/rubygems-bundler-0.3.0/lib/rubygems\_plugin.rb”:  
no such file to load – rubygems\_bundler/rubygems\_bundler\_installer  
(LoadError)

e poi…

Building native extensions. This could take a while…  
ERROR: Error installing mysql:  
ERROR: Failed to build gem native extension.

```
    /usr/local/rvm/rubies/ruby-1.9.2-p318/bin/ruby extconf.rb

```

checking for mysql\_query() in -lmysqlclient… no  
checking for main() in -lm… yes  
checking for mysql\_query() in -lmysqlclient… no  
checking for main() in -lz… yes  
checking for mysql\_query() in -lmysqlclient… no  
checking for main() in -lsocket… no  
checking for mysql\_query() in -lmysqlclient… no  
checking for main() in -lnsl… yes  
checking for mysql\_query() in -lmysqlclient… no  
checking for main() in -lmygcc… no  
checking for mysql\_query() in -lmysqlclient… no  
\*\*\* extconf.rb failed \*\*\*  
Could not create Makefile due to some reason, probably lack of  
necessary libraries and/or headers. Check the mkmf.log file for more  
details. You may need configuration options.

Provided configuration options:  
–with-opt-dir  
–with-opt-include  
–without-opt-include=${opt-dir}/include  
–with-opt-lib  
–without-opt-lib=${opt-dir}/lib  
–with-make-prog  
–without-make-prog  
–srcdir=.  
–curdir  
–ruby=/usr/local/rvm/rubies/ruby-1.9.2-p318/bin/ruby  
–with-mysql-config  
–without-mysql-config  
–with-mysql-dir  
–without-mysql-dir  
–with-mysql-include  
–without-mysql-include=${mysql-dir}/include  
–with-mysql-lib  
–without-mysql-lib=${mysql-dir}/lib  
–with-mysqlclientlib  
–without-mysqlclientlib  
–with-mlib  
–without-mlib  
–with-mysqlclientlib  
–without-mysqlclientlib  
–with-zlib  
–without-zlib  
–with-mysqlclientlib  
–without-mysqlclientlib  
–with-socketlib  
–without-socketlib  
–with-mysqlclientlib  
–without-mysqlclientlib  
–with-nsllib  
–without-nsllib  
–with-mysqlclientlib  
–without-mysqlclientlib  
–with-mygcclib  
–without-mygcclib  
–with-mysqlclientlib  
–without-mysqlclientlib

Gem files will remain installed in  
/usr/local/rvm/gems/ruby-1.9.2-p318/gems/mysql-2.8.1 for inspection.  
Results logged to  
/usr/local/rvm/gems/ruby-1.9.2-p318/gems/mysql-2.8.1/ext/mysql\_api/gem\_make.out

qualcuno mi può gentilmente aiutare? Sono alle prime armi sia con ruby  
che con mysql magari è un errore da poco.  
vi ringrazio anticipatamente.  
Matteo

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<div class="post-metadata">

**Author:** ![matteoredaelli](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/d2c977/32.png) [@matteoredaelli](https://www.ruby-forum.com/u/matteoredaelli)\
**Post date:** [July 22, 2012, 9:27am UTC](https://www.ruby-forum.com/t/aiuto-error-loading-rubygems-plugin/226365/2 "2012-07-22T09:27:14Z")

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innanzi tutto, se non hai motivi particolari per non farlo, preferisci  
la gemma mysql2 a mysql.

il database mysql installato? usi linux o osx?

michele.

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<div class="post-metadata">

**Author:** ![matteoredaelli](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/d2c977/32.png) [@matteoredaelli](https://www.ruby-forum.com/u/matteoredaelli)\
**Post date:** [July 22, 2012, 1:41pm UTC](https://www.ruby-forum.com/t/aiuto-error-loading-rubygems-plugin/226365/3 "2012-07-22T13:41:58Z")

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Michele F. wrote in post #1069654:

> innanzi tutto, se non hai motivi particolari per non farlo, preferisci  
> la gemma mysql2 a mysql.
> 
> il database mysql installato? usi linux o osx?
> 
> michele.

ciao Michele, si il database l’ho già installato e uso linux ubuntu.

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<div class="post-metadata">

**Author:** ![matteoredaelli](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/d2c977/32.png) [@matteoredaelli](https://www.ruby-forum.com/u/matteoredaelli)\
**Post date:** [July 22, 2012, 9:36pm UTC](https://www.ruby-forum.com/t/aiuto-error-loading-rubygems-plugin/226365/4 "2012-07-22T21:36:59Z")

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Come puoi vedere all’inizio dei messaggi d’errore, l’installazione non  
ha trovato nessuna libreria con cui compilare la gemma. Installa la  
libreria con

sudo apt-get install libmysqlclient-dev

Mi unisco a Michele nel consigliarti la gemma mysql2. Se è  
un’applicazione rails cambia il nome dell’adapter in config/database.yml

Paolo

matteo ratti wrote in post #1069660:

> Michele F. wrote in post #1069654:
> 
> > innanzi tutto, se non hai motivi particolari per non farlo, preferisci  
> > la gemma mysql2 a mysql.
> > 
> > il database mysql installato? usi linux o osx?
> > 
> > michele.
> 
> ciao Michele, si il database l’ho già installato e uso linux ubuntu.