I am trying to run an abaqus job which has an initial step followed by a restart file which calls on a user subroutine to determine muscle forces based on displacement. When I call the subroutine in the initial step I get the error "***ERROR: Sensor KIN_AP_SENSOR cannot be found but is accessed in VUAMP. Please make sure that this sensor is defined for this step."

Yet I have the sensor defined in the .inp file as

*OUTPUT, HISTORY, SENSOR, TIME INTERVAL=1e-5, NAME=KIN_AP_SENSOR

*ELEMENT OUTPUT, ELSET=AXIS_R_TF_EXT_AP

CU1,

and my Fortran code is

tfAP = vGetSensorValue('KIN_AP_SENSOR',jSensorLookUpTable,

* sensorValues)

Any help on what the issue could be would be appreciated. Thanks!

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