Solving the 'Library not Loaded' Error when Downloading MAMP libpng16.16.dylib

As a MAMP user, I recently encountered an error while trying to update my PHP version from 7.1.0 to 7.1.8. The error was related to the downloading of libpng16.16.dylib and was preventing me from successfully updating my PHP version.

The issue turned out to be with the compatibility of the library versions. In my case, I had a special PHP version with Oracle drivers that needed to be updated. To resolve this issue, I first needed to backup all files in my MAMP/htdoc folder. Then, I updated the PATH in my CLI php interpreter by configuring MAMP's php version as my default.

However, even after completing these steps, I was still unable to successfully update my PHP version. The error persisted and I had to resort to installing a new version of MAMP (4.1 to 4.2) which resolved the issue.

To resolve similar issues in the future, it's essential to keep your custom compiled php version backed up and to be cautious when updating your PHP version. Additionally, ensuring that all files are backed up before making any changes is crucial.

For those experiencing a similar error with libpng16.16.dylib, here are some steps you can follow:

1. Search for the relevant result: `brew info libpng`

2. Check if you have multiple versions of libpng installed and remove any unnecessary ones.

3. Create a symlink to the correct version of libpng using `ln -s /usr/local/Cellar/libpng/1.5.14/lib/libpng15.15.dylib /usr/local/lib/libpng15.15.dylib`

4. Try locating the libpng version(s) on your box using the command `locate libpng15.15.dylib`

By following these steps, you should be able to resolve any issues related to downloading MAMP libpng16.16.dylib and successfully update your PHP version.

Download mamp libpng16.16.dylib