How to Fix 'Dyld: Library Not Loaded' Error on macOS

This guide explains how to resolve 'Dyld: Library Not Loaded' Error on macOS, starting with the most likely causes and moving through practical troubleshooting steps.

What causes the 'Dyld: Library Not Loaded' error on macOS?

This error can occur when the computer is looking for the file 'libmysqlclient.18. dylib' or a similar file in the 'usr / lib' folder. This file usually does not appear in the folder because an error occurred.

We now understand the nature of the problem, so we can find solutions. You should follow the specific order below to avoid any conflicts in the machine.

Method 1: Create a Symbolic Link

Sometimes the problem can be solved by creating a Symbolic Link when the computer is checking the '. dylib' file. Please follow these steps:

1. Search for / usr / lib folder.
2. Press combination of Command + Space .
3. Type Terminal and press Enter . Terminal on Mac
4. Type the following command into Terminal and press Enter :

   sudo ln -s /path/to/your/libmysqlclient.18.dylib /usr/lib/libmysqlclient.18.dylib

   The above command will produce the following result:

   sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/lib/libmysqlclient.18.dylib

5. Check to see if the problem still exists.

Method 2: Update Brew

In some cases, the file is missing in the directory due to an outdated Brew installation. Therefore, you should update the new Brew version:

1. Press combination of Command + Space .
2. Type Terminal and press Enter .
3. Type the following command into Terminal and press Enter :

   brew update

4. Type the following command and Terminal and press Enter :

   brew upgrade

5. Check to see if the problem is resolved.

Method 3: Run a 'Copy_dylibs. py' script

In some cases, the parts related to the '. dylib' file are incorrect because this error occurred. So running a script will automatically identify and correct this error:

1. Click on the link to download the script. copy_dylibs. py
2. Extract the . zip file. Extract the zip file
3. Read the 'readme' file in the . zip file as per the instructions.
4. Run the copy_dylibs. py script and let it fix the error itself.
5. Check to see if there is a problem in the device.