The mod Pyanodons Coal Processing (1.7.4) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event pycoalprocessing::on_nth_tick(1)
Gui element with name pywiki_frame already present in the parent element.
stack traceback:
pycoalprocessing/scripts/wiki.lua:42: in function 'handler'
stdlib/stdlib/event/event.lua:334: in function 'pcall'
stdlib/stdlib/event/event.lua:354: in function 'dispatch_event'
stdlib/stdlib/event/event.lua:437: in function <stdlib/stdlib/event/event.lua:388>
stack traceback:
[C]: in function 'add'
pycoalprocessing/scripts/wiki.lua:42: in function 'handler'
stdlib/stdlib/event/event.lua:334: in function 'pcall'
stdlib/stdlib/event/event.lua:354: in function 'dispatch_event'
stdlib/stdlib/event/event.lua:437: in function <stdlib/stdlib/event/event.lua:388>

Crashes for me too, but only, if I add new mod to existing save with Pyanodons Coal Processing 1.7.4.

I just went back to version 1.7.2 before the wiki was added for now. I am sure the team behind the mod will fix soon.

hi 1.7.4 works in eng verion on a 700h save
all py mods witout py AL + i have same other mods runing with it like FNEI, fast train, teleporters el boilers loader........
and in needed like a good min to load the save insatat of 5sec but in works opens he wiki and you see the stuff in it.

ok ive made a change and tested with the 2 saves ive been given. 1.7.5 should fix this error

You fixed it. Thank you.

Thanks for the update work cheers

I updated all py mods to the latest version and i lose the ability to make fawogae plantation mk01 if a load a save that had already unlocked the fawogae technology before the update. If i load an earlier save and then research fawogae technology it unlocks just fine.

Do you know how to un reserh and then re reserh. I think faw is under coal processing 1 or mk1. Mybe machines 1 or mk1 i can wtite itdown when i get home from work. I hope it helps you abit.

@urh111 Thank you very much for your help, i didn't know i could use a command to unresearch and re research tech, i looked it up and it worked, i can make fawogae plantation mk1 again.
/c game.player.force.technologies['fawogae'].researched=false
/c game.player.force.technologies['fawogae'].researched=true

I have the same problem on Factorio 0.17, how to solve this ?

Update to .18 as v17 hasn't been supported in awhile.