无法运行命令 - 耙：安装

当我运行命令rake:install，我得到这个错误信息：无法运行命令 - 耙：安装

WARNING: 'require 'rake/rdoctask'' is deprecated. Please use 'require 'rdoc/task' (in RDoc 2.4.2+)' instead. 
    at /Users/adam/.rvm/gems/ruby-1.9.2-p290/gems/rake-0.9.2.2/lib/rake/rdoctask.rb 
    Successfully built RubyGem 
    Name: mysql2psql 
    Version: 0.1.0 
    File: mysql2psql-0.1.0.gem 
Executing "ruby -S gem install ./pkg/mysql2psql-0.1.0.gem": 
ruby -S gem install ./pkg/mysql2psql-0.1.0.gem 
Building native extensions. This could take a while... 
ERROR: Error installing ./pkg/mysql2psql-0.1.0.gem: 
    ERROR: Failed to build gem native extension. 

     /Users/adam/.rvm/rubies/ruby-1.9.2-p290/bin/ruby extconf.rb 
checking for pg_config... no 

    =========== WARNING =========== 

    You are building this extension on OS X without setting the 
    ARCHFLAGS environment variable, and pg_config wasn't found in 
    your PATH. If you are seeing this message, that means that the 
    build will probably fail. 

    If it does, you can correct this by either including the path 
    to 'pg_config' in your PATH or setting the environment variable 
    ARCHFLAGS to '-arch <arch>' before building. 

    For example: 
    (in bash) $ export PATH=/opt/local/lib/postgresql84/bin:$PATH     
      $ export ARCHFLAGS='-arch x86_64' 
    (in tcsh) % set path = (/opt/local/lib/postgresql84/bin $PATH) 
      % setenv ARCHFLAGS '-arch x86_64' 

    Then try building again. 

    =================================== 

MacOS X build: fixing architecture flags: 
checking for libpq-fe.h... no 
Can't find the 'libpq-fe.h header 
*** 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=/Users/radek/.rvm/rubies/ruby-1.9.2-p290/bin/ruby 
    --with-pg 
    --without-pg 
    --with-pg-config 
    --without-pg-config 
    --with-pg-dir 
    --without-pg-dir 
    --with-pg-include 
    --without-pg-include=${pg-dir}/include 
    --with-pg-lib 
    --without-pg-lib=${pg-dir}/lib 
    --enable-static-build 
    --disable-static-build 


Gem files will remain installed in /Users/adam/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.9.0 for inspection. 
Results logged to /Users/adam/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.9.0/ext/gem_make.out 
rake aborted! 
Command failed with status (1): [ruby -S gem install ./pkg/mysql2psql-0.1.0...] 

Tasks: TOP => install 
(See full trace by running task with --trace)

显然是在pg宝石的问题，但是当我检查名单在我的应用程序安装宝石，所以有* pg (0.13.2)

所以我失踪了吗？

来源

2012-03-18 user984621

这是mysql2psql的宝石，它不能安装，显然是因为它找不到Postgres的头文件 – 2012-03-18 12:37:48

解决方案上面的问题：

1. export PATH=/Library/PostgreSQL/9.1/bin:$PATH 
2. export ARCHFLAGS='-arch x86_64' 
3. rake install

来源

2012-03-18 12:44:50 user984621

无法运行命令 - 耙：安装

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