Installing HACS

[marchino61]

I am trying to install HACS (so I can install the Meross integration).

I am following the instructions here:

Downloading HACS - HACS

I get the error: “! Add-on not found” when trying to add the add-on repository.

I am using HAOS 15.0 (I can’t upgrade at the moment - another error “no supervisor internet connection”) running on a PC. I am following “OS/Supervised”. I know there is an Internet connection, since I can access my HA from the Internet on my phone.

I’ve tried using Google for an answer, but couldn’t come up with anything.

HA versions:

• Installation method Home Assistant OS
• Core 2025.6.0
• Supervisor 2025.05.5
• Operating System 15.0
• Frontend 20250531.2

Can anyone please help with this?

[fleskefjes]

Start by verifying your DNS settings.

[Sir_Goodenough ((SG) WhatAreWeFixing.Today)]

@marchino61

I am following “OS/Supervised”.

Deprecating Core and Supervised installation methods, and 32-bit systems

[image] We are today officially deprecating two installation methods and three legacy CPU architectures. We always strive to have Home Assistant run on almost anything, but sometimes we must make difficult decisions to keep the project moving forward. Though these changes will only affect a small percentage of Home Assistant users, we want to do everything in our power to make this easy for those who may need to migrate. Beginning with Home Assistant 2025.6, affected systems will displ…

[ShadowFist]

OS/Supervised is the tab in the HACS docs which tells you how to install HACS, not the OP’s install method.

Gotta admit I was about to post the same thing you did & had to read the post 3 times to click

[HACS-bank (Jay Tee)]

@marchino61

“no supervisor internet connection”

This seems to be at the heart of your troubles