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Editorial Team
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Asked: 2026-06-05T10:15:56+00:00

I am working on a rails app. Installed Postgresql using postgresql-9.1.2-1-osx.dmg Installed pg gem.

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I am working on a rails app.
Installed Postgresql using postgresql-9.1.2-1-osx.dmg
Installed pg gem.
Then when I executed rake db:create
getting the following error –

dlopen(/Users/sathishvc/.rvm/gems/ruby-1.9.3-head@knome-vivacious/gems/pg-0.12.2/lib/pg_ext.bundle,
9): Library not loaded: /usr/local/lib/libpq.5.4.dylib

Checked if /usr/local/lib/libpq.5.4.dylib exists or not. It does not.
So, it should be existing somewhere else in the system or I do not know, if I need to install any other piece of software for this.

Advice anyone please?

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1 Answer

  1. Editorial Team

    Some time after I posted this question, I found that libpq.5.4.dylib resides in /Library/PostgreSQL/9.1/lib/.
    So, I created the following link:
    lrwxr-xr-x 1 sathishvc admin 43 Jan 28 23:40 /usr/local/lib/libpq.5.4.dylib -> /Library/PostgreSQL/9.1/lib/libpq.5.4.dylib.

    This solved the problem then.

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