Hello, We can't upgrade the basic accumulator with accumulator of your mods (using blueprint) (Space exploration, K2)

Thanks for the report. I'm going to have a look into the issue. Poke me again if I don't respond within a week ;)

I think this is intended behavior. When trying to upgrade yellow transport belt with blue using a blueprint the same error message appears. You should be using an upgrade planner to do what you want.

It is precisely by using this one that the upgrade does not appear.

Okay I will take another look. Can you provide your full mod list with version numbers? That would be helpful.

yep

{
"mods":
[

{
  "name": "base",
  "enabled": true
},

{
  "name": "aai-industry",
  "enabled": true
},

{
  "name": "aai-signal-transmission",
  "enabled": true
},

{
  "name": "Advanced-Electric-Revamped-v16",
  "enabled": true
},

{
  "name": "AF-Infinite-Technology",
  "enabled": true
},

{
  "name": "Aircraft",
  "enabled": true
},

{
  "name": "alien-biomes",
  "enabled": true
},

{
  "name": "alien-biomes-hr-terrain",
  "enabled": true
},

{
  "name": "ammo-loader",
  "enabled": true
},

{
  "name": "AutoDeconstruct",
  "enabled": true
},

{
  "name": "BetterAlertArrows",
  "enabled": true
},

{
  "name": "BetterFluidColorsUpdated",
  "enabled": true
},

{
  "name": "bobenemies",
  "enabled": true
},

{
  "name": "bobinserters",
  "enabled": true
},

{
  "name": "cargo-ships",
  "enabled": true
},

{
  "name": "cargo-ships-graphics",
  "enabled": true
},

{
  "name": "chest",
  "enabled": true
},

{
  "name": "classic-beacon",
  "enabled": true
},

{
  "name": "comb",
  "enabled": true
},

{
  "name": "Enhanced_Map_Colors",
  "enabled": true
},

{
  "name": "EpicArtillerySounds",
  "enabled": true
},

{
  "name": "EpicWeaponSounds",
  "enabled": true
},

{
  "name": "even-distribution",
  "enabled": true
},

{
  "name": "factoryplanner",
  "enabled": true
},

{
  "name": "flib",
  "enabled": true
},

{
  "name": "HelicopterRecolored",
  "enabled": true
},

{
  "name": "HelicopterRevival",
  "enabled": true
},

{
  "name": "hercules-robots",
  "enabled": true
},

{
  "name": "heroturrets",
  "enabled": true
},

{
  "name": "informatron",
  "enabled": true
},

{
  "name": "jetpack",
  "enabled": true
},

{
  "name": "KitchsLessIntrusiveIcons",
  "enabled": true
},

{
  "name": "Krastorio2",
  "enabled": true
},

{
  "name": "liborio",
  "enabled": true
},

{
  "name": "Make_Artillery_Great_Again",
  "enabled": true
},

{
  "name": "Mower",
  "enabled": true
},

{
  "name": "OreEraser",
  "enabled": true
},

{
  "name": "PatchFR",
  "enabled": true
},

{
  "name": "PollutionColour",
  "enabled": true
},

{
  "name": "power-grid-comb",
  "enabled": true
},

{
  "name": "qol_research",
  "enabled": true
},

{
  "name": "qsMenuRevived",
  "enabled": true
},

{
  "name": "railloader",
  "enabled": true
},

{
  "name": "RealisticFlashlight",
  "enabled": true
},

{
  "name": "Realistic_Heat_Glow",
  "enabled": true
},

{
  "name": "robot_attrition",
  "enabled": true
},

{
  "name": "Science_pack_glow",
  "enabled": true
},

{
  "name": "shield-projector",
  "enabled": true
},

{
  "name": "space-exploration",
  "enabled": true
},

{
  "name": "space-exploration-graphics",
  "enabled": true
},

{
  "name": "space-exploration-graphics-2",
  "enabled": true
},

{
  "name": "space-exploration-graphics-3",
  "enabled": true
},

{
  "name": "space-exploration-graphics-4",
  "enabled": true
},

{
  "name": "space-exploration-graphics-5",
  "enabled": true
},

{
  "name": "space-exploration-hr-graphics",
  "enabled": true
},

{
  "name": "space-exploration-postprocess",
  "enabled": true
},

{
  "name": "ThickerLines",
  "enabled": true
},

{
  "name": "Turbwhine",
  "enabled": true
},

{
  "name": "VoidChestPlus",
  "enabled": true
}

]
}

I'm sorry but I can't reproduce your problem. Works for me: https://imgur.com/a/Ty7IJ0z
All mods you listed are installed as you can see by the inferno in the background :D

Sorry for the very late reply but I was talking about Accumulator and not a solar panel.

Hello I've updated the gallery with images showing that it also works with accumulators.
https://imgur.com/a/Ty7IJ0z
I don't know what's wrong with your install. Maybe you can zip your mods folder so I also get all your mod settings etc?
What Factorio version are you on?

Helloo,
Factorio latest version
Alls mods (zip) : https://easyupload.io/g7cy4w

Hello,
I don't think it is possible to fix.
Upgrading within the accumulators of my mod works. But upgrading from the vanilla accumulator to the mod versions does not work. Space Exploration overwrites the "next_upgrade" target to their own "space-accumulator" and you can't have multiple "next_upgrade" targets. It's just loaded later so it get's preference. And even if I would implement some kind of post-fix script that repairs it, that would still not guarantee it working in addition to breaking space explorations accumulator upgrade logic.
So no luck unfortunately.