Cacher is the code snippet organizer for pro developers

// PROBLEM:

The backup could not be completed because 3 files could not be read:
zendframework/zend-escaper/doc/book/index.md
zendframework/zend-stdlib/doc/book/index.md
Please verify disk permissions.

// CAUSE:
Tar archives convert symbolic links to hard links.
.tar.gz compression can corrupt .md files, changing syslinks into hardlinks.
https://www.drupal.org/project/drupalorg/issues/2885095

// SOLUTION:

Oplossing: download de .zip versie van Drupal core (Firefox) en vervang de map vendor/zendframework