The mod Train tunnels caused a non-recoverable error.
Please report this error to the mod author.

Error while running event traintunnels::on_tick (ID 0)
LuaTrain API call when LuaTrain was invalid.
stack traceback:
traintunnels/control.lua:494: in function <traintunnels/control.lua:487>
stack traceback:
[C]: in function 'index'
__traintunnels/control.lua:494: in function <traintunnels/control.lua:487>

This error can not have anything to do with placing an entrance. More likely per coincident another train was modified while passing through a tunnel.

It's noted, but I won't be able to fix anything for at least another week.

Had a problem too. I was just placing a tunnel entrance and this occoured. This is the first tunnel entrance ever crafted this game and placed down.

The mod Train tunnels caused a non-recoverable error.
Please report this error to the mod author.

Error while running event traintunnels::on_tick (ID 0)
LuaTrain API call when LuaTrain was invalid.
stack traceback:
traintunnels/control.lua:494: in function <traintunnels/control.lua:487>
stack traceback:
[C]: in function 'index'
__traintunnels/control.lua:494: in function <traintunnels/control.lua:487>

Had the same error. Only when placing, existing tunnels are fine though.

The mod Train tunnels caused a non-recoverable error.
Please report this error to the mod author.

Error while running event traintunnels::on_tick (ID 0)
LuaTrain API call when LuaTrain was invalid.
stack traceback:
traintunnels/control.lua:494: in function <traintunnels/control.lua:487>
stack traceback:
[C]: in function 'index'
__traintunnels/control.lua:494: in function <traintunnels/control.lua:487>

Factorio 0.17.43, TT 0.0.6
Placed a tunnel entrance on the middle of a straight rail in a Factorissimo MK3 building:

The mod Train tunnels caused a non-recoverable error.
Please report this error to the mod author.

Error while running event traintunnels::on_built_entity (ID 6)
traintunnels/control.lua:177: bad argument #-1 to 'index' (string expected, got nil)
stack traceback:
[C]: in function '__index'
__traintunnels/control.lua:177: in function <traintunnels/control.lua:176>
(...tail calls...)
traintunnels/control.lua:363: in function 'createTunnelDown'
traintunnels/control.lua:910: in function <traintunnels/control.lua:908>

Tried to pick up a train tunnel while inside a locomotive:
The mod Train tunnels caused a non-recoverable error.
Please report this error to the mod author.

Error while running event traintunnels::on_player_mined_entity (ID 65)
traintunnels/control.lua:318: attempt to index field '?' (a nil value)
stack traceback:
traintunnels/control.lua:318: in function 'removeTunnelUp'
traintunnels/control.lua:925: in function <traintunnels/control.lua:920>

hello, I had a problem with the mod when I wanted to delete a tunnel

and I have another problem that I have only the entrance tunnel, impossible to turn it, to have an exit tunnel

I play on 0.17.58

link fo screen
https://www.cjoint.com/c/IGqnRLTaioY