WordPress users are reporting that attempts to update to WordPress 5.9 is throwing “Download failed.: The checksum of the file” errors.
WordPress download failed checksum error
Updating WordPress from one version to another should not cause problems. However, a few users encounter problems. The WordPress “Download failed, the checksum of the file (…) does not match the expected checksum value” error is mostly associated with memory issues. Here are simple steps to help you troubleshoot the problems.
How to fix WordPress download failed checksum error
To fix the installation errors follow the steps below;
Solution 1: Increase disk space
If you have run out of disk space or the remaining disk space is not enough to install WordPress 5.9, then it does cause download failed errors. Log in to your control panel or hosting account and check whether your disk space is full and increase it.
Solution 2: Permission
Check your WordPress user account and make sure that you are the admin to rule out permission-related restrictions.
Solution 3: Manual Installation
Sometimes automatic WordPress updates through the wp-admin dashboard may fail due to your server’s configuration architecture that prevents files from saving. In such a case, you need to update WordPress manually.
WordPress.org has provided a detailed step-by-step guide on how to manually update your WordPress installation.
Manual installation is done through FTP or Control Panel under file manager. Make sure that you have backed up your files before performing a manual update.