Hi,
Using the Samsung AC custom component from GitHub - atxbyea/samsungrac: Home Assistant Climate Device for controlling (not only) Samsung AC
It seems since 2021.6 all custom components require a key file?
Has anyone got a work around for this, or have a different samsung AC component that is working?
No it doesn’t require a key file. It requires a version key in manifest.json, which that GitHub component has.
Just checked my folder and i have the folder there, yet the integration is not loading since update to latest version
Here is what i see in HA log
And what version of that custom component do you have installed?
In the file
/config/custom_components/climate_ip/manifest.json
is there a version key, ie a line that says something like
"version": "3.5.2",
{
"domain": "climate_ip",
"name": "Climate IP",
"documentation": "https://github.com/atxbyea/samsungrac",
"issue_tracker": "https://github.com/atxbyea/samsungrac/issues",
"dependencies": [],
"config_flow": false,
"codeowners": [
"@SebuZet"
],
"requirements": [
"requests>=2.21.0",
"xmljson>=0.2.0"
]
}
Why not answer my question? Or even update it and ignore me? Then you could claim to have solved it yourself 
to be honest, i was in a bit of a rush, so i grabbed a copy of the code in my system which i had assumed would have answered your question 
Well it didn’t. How long since you downloaded or updated this custom component?
I am sure you will be able to move on
In answer to your latest question, Probably about 6 months
Well as you can see from github, the required version tag was added on 23 March. Update and it will load.