라이브러리로드되지 않은 것 : /usr/local/lib/libpq.5.4.dylib.

Question

레일 앱에서 일하고 있습니다.
PostgreSQL-9.1.2-1-OSX.DMG를 사용하여 설치된 PostgreSQL을 설치했습니다 PG 보석을 설치했습니다.
그런 다음 rake db:create를 실행할 때 다음 오류가 발생합니다 -

Dlopen (/users/sathishvc/.rvm/gems/ruby-1.9.3-head@knome-vivy/gems/pg-0.12.2/lib/pg_ext.bundle, 9) :로드되지 않은 라이브러리 : /usr/local/lib/libpq.5.4.dylib

/usr/local/lib/libpq.5.4.dylib가 존재하는지 확인하십시오.그것은하지 않습니다.

따라서 시스템의 다른 곳 어딘가에 존재해야하거나 다른 소프트웨어를 설치 해야하는 경우 모르겠습니다.

조언을 제발하시기 바랍니다.

Answer 1

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.

Answer 2

if you have upgraded PostgreSQL with homebrew (brew update && brew upgrade), then simply uninstall the pg gem:

gem uninstall pg
bundle install

and the path will be corrected for you. No need to uninstall the whole PostgreSQL cluster.

Answer 3

I was running into this issue after switching over to the PostgresApp and removing the existing PostgreSQL version via

brew remove postgres

I ultimately solved the problem by re-installing PostgreSQL via

brew install postgres

I was able to retain the use of the PostgresApp by adding the following to my .bash_profile

export PATH="/Applications/Postgres.app/Contents/MacOS/bin:/usr/local/bin:$PATH"

You can also try running:

brew doctor

As it alerted me to this as well as some additional errors.

This error was also affecting my ability to use the Paperclip gem as it was causing ImageMagick to fail with the same error.

(Using OS X 10.8.2)

Answer 4

In my case, uninstalling /reinstalling gem didn't help. But I added the PostgreSQL library path to $DYLD_LIBRARY_PATH environment variable in my ~/.bash_profile:

export DYLD_LIBRARY_PATH=/Library/PostgreSQL/9.3/lib:$DYLD_LIBRARY_PATH

If you also have MySQL installed, this line can look like:

export DYLD_LIBRARY_PATH=/usr/local/mysql/lib:/Library/PostgreSQL/9.3/lib:$DYLD_LIBRARY_PATH

Of course pay attention to version number in the PostgreSQL path, at the time of this writing it is 9.3. I'm using RVM, Ruby 2.0.0, pg gem 0.17.0, on Mac OS X 10.6.

Answer 5

Try brew prune and then reinstall

Answer 6

this is not a direct answer to the question but can arise frequently

Two additional cases that might be of interest if you have upgraded PostgreSQL with homebrew:

1. you have proceeded in the past to some pruning of gem versions
2. your application is older and cannot take a recent version of pg (I have a rails 2 app failing with pg 0.17 and nearly killing the server: the mkmr.log increases exponentially ...try 200GB! )

you may actually have numerous versions of pg to rely upon

when you run

gem uninstall pg

if you have more than one version, the system will ask which version you wish to delete. But that list may be useful to you! As an alternative to awenkhh's answer you may stop there and reset your gems to an acceptable version