Hello with latest version when robots trying to replace old machines I"m getting this error... thx

Error while running event WearAndTear::on_robot_pre_mined (ID 15)
WearAndTear/control.lua:415: attempt to index a nil value

Hmm. That's a puzzling bug. For some reason it must be not placing the ghost item, even though it's supposed to check first to make sure it's "placeable". I've been testing with no problems.

Is it from a new save, or an old pre.15 game?

I just uploaded a fix that should prevent it from crashing, but I'm still not sure why it didn't place the ghost in your particular case. Let me know if you have more issues.

Thank you it works...

I think I have the same problem with an old 0.14 game.
I am playing with bob's and angel's mods and tried to replace a building with bots and roboports from angel's logistic mod.

Thank you for your mods! I am having a great time so far.