在我的mac终端升级了几个gems之后,我创建了一个由mysql数据库支持的新的rails项目。启动应用程序后,会出现常规的欢迎页面。
问题在于-当我尝试点击名为“关于应用程序环境”的链接时,在浏览器中收到以下输出:
我在终端中也收到了这个输出。
正如所说的那样,我在停止应用程序后尝试发出“gem install mysql”命令,却看到了这段我无法理解的术语:
然而,当我在命令行中运行"mysql --version"时,mysql已经安装了!
我也尝试过输入“sudo gem install mysql”,但是也没有成功:
如果有人能理解这里发生了什么,并知道如何解决这个问题,我会非常感激 :)
问题在于-当我尝试点击名为“关于应用程序环境”的链接时,在浏览器中收到以下输出:
MissingSourceFile in Rails/infoController#properties
no such file to load -- mysql
我在终端中也收到了这个输出。
The bundled mysql.rb driver has been removed from Rails 2.2. Please install the mysql gem and try again: gem install mysql.
Processing Rails::InfoController#properties (for 127.0.0.1 at 2008-12-09 20:41:41) [GET]
Processing Rails::InfoController#properties (for 127.0.0.1 at 2008-12-09 20:41:41) [GET]
MissingSourceFile (no such file to load -- mysql):
...
正如所说的那样,我在停止应用程序后尝试发出“gem install mysql”命令,却看到了这段我无法理解的术语:
WARNING: Installing to ~/.gem since /Library/Ruby/Gems/1.8 and
/usr/bin aren't both writable.
WARNING: You don't have /Users/mymac/.gem/ruby/1.8/bin in your PATH,
gem executables will not run.
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb install mysql
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... 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
--without-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=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/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
Gem files will remain installed in /Users/mymac/.gem/ruby/1.8/gems/mysql-2.7 for inspection.
Results logged to /Users/mymac/.gem/ruby/1.8/gems/mysql-2.7/gem_make.out
显然我的mysql安装出了问题,因为我也尝试运行rake命令来创建数据库,但出现以下提示。
!!! The bundled mysql.rb driver has been removed from Rails 2.2. Please install the mysql gem and try again: gem install mysql.
rake aborted!
no such file to load -- mysql
(See full trace by running task with --trace)
然而,当我在命令行中运行"mysql --version"时,mysql已经安装了!
mysql Ver 14.12 Distrib 5.0.67, for apple-darwin9.4.0 (i686) using readline 5.1
我也尝试过输入“sudo gem install mysql”,但是也没有成功:
sudo gem install mysql
Password:
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb install mysql
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... no
checking for mysql_query() in -lmysqlclient... no
Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/mysql-2.7 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/mysql-2.7/gem_make.out
我也尝试了像bradheintz建议的那样发出"sudo gem install mysql--with-mysql-config=/usr/local/mysql/bin/mysql_config",看起来安装成功了,但在尝试再次查看应用程序环境后,没有出现Ajax下拉菜单,而且Rails应用程序完全停止!在应用程序决定停止之前,打印出以下输出信息。
dyld: lazy symbol binding failed: Symbol not found: _mysql_init
Referenced from: /Library/Ruby/Gems/1.8/gems/mysql-2.7/lib/mysql.bundle
Expected in: dynamic lookup
dyld: Symbol not found: _mysql_init
Referenced from: /Library/Ruby/Gems/1.8/gems/mysql-2.7/lib/mysql.bundle
Expected in: dynamic lookup
Trace/BPT trap
如果有人能理解这里发生了什么,并知道如何解决这个问题,我会非常感激 :)