#define ORIG_X_STEP_PIN         26

after update to version 0.92.6 and changing #define JAM_METHOD to 2 or 3 i'm still getting the same error.

#define SDSUPPORT 0

#define DEBUG_DRYRUN_ERROR

#define COMPAT_PRE1

#define FAN_BOARD_PIN ORIG_FAN2_PIN

#define X_MIN_POS 0

I have modyfied the #define JAM_METHOD to 2 and 3 but i get an error during compiling

#define NUM_EXTRUDER 3

//#define EXT1_HEATER_PIN HEATER_2_PIN

       #define LCD_PINS_RS        28

#define NUM_EXTRUDER 3

#define BEEPER_LONG_SEQUENCE 24,8

#define INVERT_X_DIR 0

That is now included as experimental feature in jam control. Set#define JAM_METHOD 2 or 3

#define Z_PROBE_X1 0

#define ENDSTOP_PULLUP_X_MIN true

#define Z_PROBE_Z_OFFSET 0

#define Z_PROBE_Z_OFFSET 0

Extrude temp is set to a reasonable value #define EXTRUDE_MINTEMP 150