'I_MIN_PIN not declared in scope' while trying to configure additional axes

Running into this error while configuring the I-axis in Marlin

"Compilation error: 'I_MIN_PIN' was not declared in this scope"

However, there is no 'I_MIN_PIN' variable located anywhere in the configuration files. Support for additional axes is slim because it is a newer feature.

I am using a RAMPS 1.4 board with A4988 drivers.

If anyone has run into this error before, I would really appreciate some assistance.

Thank you

Edited 1 time(s). Last edit at 06/14/2023 02:20PM by cmshap.

You have to add it.

See 5 axis ramps example [github.com]

#ifndef MOTHERBOARD
  #define MOTHERBOARD BOARD_RAMPS_14_EFB
  #define I_STOP_PIN 65 // Aux-2
  #define J_STOP_PIN 66 // Aux-2
#endif