Postgres gem 无法安装在 12.10 上

Postgres gem 无法安装在 12.10 上

我正在尝试在我的计算机上运行 Ruby on Rails,但 pg gem 总是失败。我发现很多其他问题都说你只需要使用libpq-dev来自的包apt就可以解决问题,但它仍然说找不到库。

nicholas@nick-ubuntu:~$ gem instal pg -- --with-pq-lib=/usr/lib
Building native extensions.  This could take a while...
ERROR:  Error installing pg:
    ERROR: Failed to build gem native extension.

        /home/nicholas/.rvm/rubies/ruby-1.9.3-p327/bin/ruby extconf.rb --with-pq-lib=/usr/lib
checking for pg_config... yes
Using config values from /usr/bin/pg_config
checking for libpq-fe.h... yes
checking for libpq/libpq-fs.h... yes
checking for pg_config_manual.h... yes
checking for PQconnectdb() in -lpq... no
checking for PQconnectdb() in -llibpq... no
checking for PQconnectdb() in -lms/libpq... no
Can't find the PostgreSQL client library (libpq)
*** 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=/home/nicholas/.rvm/rubies/ruby-1.9.3-p327/bin/ruby
    --with-pg
    --without-pg
    --with-pg-dir
    --without-pg-dir
    --with-pg-include
    --without-pg-include=${pg-dir}/include
    --with-pg-lib
    --without-pg-lib=${pg-dir}/lib
    --with-pg-config
    --without-pg-config
    --with-pg_config
    --without-pg_config
    --with-pqlib
    --without-pqlib
    --with-libpqlib
    --without-libpqlib
    --with-ms/libpqlib
    --without-ms/libpqlib


Gem files will remain installed in /home/nicholas/.rvm/gems/ruby-1.9.3-p327/gems/pg-0.14.1 for inspection.
Results logged to /home/nicholas/.rvm/gems/ruby-1.9.3-p327/gems/pg-0.14.1/ext/gem_make.out

答案1

不久前,我发现我必须使用 ruby​​-pg gem 来代替 pg gem,因为 pg gem 是不必要的。另外,避免使用旧的 postgres gem。

答案2

尝试安装以下软件包:

postgresqllibpq-dev

这会让 pg gem 在 11.10、12.04 和 12.10 上为我编译本机扩展。

答案3

我有同样的问题。

安装postgresql并对libpq-dev我来说也起了作用。

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