This guide provides a comprehensive solution to fix the 'dyld: library not loaded' error for libreadline.6.dylib on macOS. If you are a developer facing this issue, follow the steps outlined below to resolve it.
Table of Contents
- Step 1: Install Homebrew
- Step 2: Install libreadline
- Step 3: Create a symlink
- Related Links
The 'dyld: library not loaded' error is a common problem faced by macOS developers when trying to run applications or scripts that depend on the
libreadline library. This error occurs if your system cannot find the required version of the library, usually
In this guide, we will walk through the steps to install the necessary version of
libreadline and create a symlink to resolve the error.
To follow this guide, you need:
- A Mac computer running macOS
- Basic knowledge of the Terminal app and command-line interface
Step 1: Install Homebrew
Homebrew is a package manager for macOS that simplifies the installation of software on macOS. We will use Homebrew to install the
If you already have Homebrew installed, skip to Step 2. Otherwise, follow these instructions to install Homebrew:
- Open the Terminal app.
- Paste the following command into the Terminal and press Enter:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
- Follow the on-screen instructions to complete the installation.
For more information on installing Homebrew, refer to the official Homebrew documentation.
Step 2: Install libreadline
Once Homebrew is installed, use the following command to install the
brew install readline
This command installs the latest version of
libreadline on your system.
Step 3: Create a symlink
libreadline, you might still encounter the 'dyld: library not loaded' error if the required version of the library is not found. To fix this issue, create a symlink to the installed version of
- Locate the installed version of
libreadlineby running the following command:
brew list readline
Note down the path to the
libreadline.dylib file, which is usually
Create a symlink to the required version of
libreadline using the following command:
ln -s /usr/local/opt/readline/lib/libreadline.dylib /usr/local/lib/libreadline.6.dylib
/usr/local/opt/readline/lib/libreadline.dylib with the path you noted down in step 2, if different.
This command creates a symlink named
libreadline.6.dylib in the
/usr/local/lib directory, which points to the installed version of
libreadline. This should resolve the 'dyld: library not loaded' error.
1. Can I use MacPorts instead of Homebrew to install libreadline?
sudo port install readline
libreadline using MacPorts, follow the steps outlined in Step 3 to create a symlink.
2. How do I uninstall Homebrew after fixing the error?
If you wish to uninstall Homebrew after fixing the error, run the following command:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/uninstall.sh)"
This command will remove Homebrew and all packages installed through it from your system.
3. Can I have multiple versions of libreadline installed on my system?
Yes, you can have multiple versions of
libreadline installed on your system. However, you need to create separate symlinks for each version, pointing to the correct
libreadline library file.
4. What other libraries can cause the 'dyld: library not loaded' error?
The 'dyld: library not loaded' error can occur for any library that is missing or not found by the system. Some common libraries that cause this error include
5. How do I find out which libraries my application depends on?
To find out which libraries your application depends on, run the
otool command with the
-L option followed by the path to your application's executable file:
otool -L /path/to/your/app
This command will display a list of libraries that your application depends on.