https://i.imgur.com/PoxMHyS.png
Now it does state other mods are also at fault but if I run just Roboport BigPole it does not work and if I run just the other two it works fine. This works on 0.17.4 but not 5-6

Obviously used the wrong tag as this is a bug...
By the way normal ports have a supply range of 50x50 now and yours are 44x44

Thanks Mr.Hell, they changed 2px in the Big Pole, i just fixed the mod... if you could test please!! :)

The range is a little less because of the maximum range of the pole, so 44x44 you can put diagonals RoboportBigPoles and connect exactly the square and the electricity.

Hey it works now.
https://i.imgur.com/biEFjHC.png (normal) 50x50 connection distance 25
https://i.imgur.com/P4U34ik.png (bigpole) 44x44 connection distance 22
But wouldn't that be solved by making the connection distance 25 which the normal one have?

Hmm... The 22 was to build Roboports diagonally in this way, connecting the energy with the pole (has maximum wire-reach)
https://mods-data.factorio.com/assets/a64db4e16350e19932ae2dce72c7da0ca7f8f816.png
with 25, they gonna be far and you have to put a pole between them.

It was a request from a player, who whe he puts diagonally, the poles did not connect.

But now I put a settings option, where to put between 10 and 45 :) see if it works :)
https://mods-data.factorio.com/assets/f6ef38df152d502cb57a47587e57d3ed84bd7d04.png

I am getting the same error
I am running Factorio ver 0.17.8
I tried to load only the mod with no others and got this error:

Error message:
Failed to load mods: The given sprite rectangle (left_top=0x0, right_bottom=74x158) is outside the actual sprite size (left_top=0x0, right_bottom=304x156).
Sprite name: base/graphics/entity/big-electric-pole/big-electric-pole.png.: base/graphics/entity/big-electric-pole/big-electric-pole.png

Mods to be disabled:
• RoboportBigPole

hmmm. im making this image be in the mod instead of get the game sprite. I hope this error dont come back. Just release the new version. Hope it works!