Error Loading Addon CB646A50_Get Does Not Exist | How to Fix

This error is specifically related to Home Assistant, not a video game or general software. This is a known bug affecting users trying to install HACS (Home Assistant Community Store) on the newly released Home Assistant Core 2026.2.0 update.

The error cb646a50_get does not exist happens because the “Easy Install” button on the HACS website is trying to pull a downloader script that your Home Assistant doesn’t “see” yet because the repository is missing.

Here is the fix to get HACS installed immediately:

The Fix: Manually Add the Repository

You need to force Home Assistant to recognize the HACS installer source.

1. Open your Home Assistant dashboard.

2. Go to Settings > Add-ons (sometimes labeled “Apps” in the 2026 update).

3. Click the “Add-on Store” button (bottom right).

4. Click the three dots (top right corner) > Repositories.

5. In the box, paste this exact URL: https://github.com/hacs/addons

6. Click Add.

7. Hard Refresh your browser (Ctrl + F5).

8. Now search for “HACS” in the Add-on Store again. The “HACS download” script should appear. Click it to install.

Alternative Method: The Terminal Fix

If the manual repository method fails, you can install it directly via the Terminal (if you have the “Terminal & SSH” add-on installed):

1. Open the Terminal in Home Assistant.

2. Paste this command and hit Enter:

   Bash

   wget -O - https://get.hacs.xyz | bash -
   

3. Once it finishes, restart Home Assistant (Developer Tools > Restart).

4. After the reboot, go to Settings > Devices & Services > Add Integration and search for “HACS.”