Hi, I Have this error in this simple circuit:

Failed: sh -c {cd /home/filippo/.xschem/simulations; Xyce "/home/filippo/.xschem/simulations/untitled.spice"
# Add -r "/home/filippo/.xschem/simulations/untitled.raw" if you want all variables saved}
stderr:

	Step size reached minimum step size bound

	Step size reached minimum step size bound
data:

*****
***** Welcome to the Xyce(TM) Parallel Electronic Simulator
*****
***** This is version Xyce DEVELOPMENT-202303091748-(Public_Release-7.6.0-146-g5330643a-dirty)-opensource
***** Date: Fri Mar 10 10:10:06 CET 2023


***** Executing netlist /home/filippo/.xschem/simulations/untitled.spice

***** Reading and parsing netlist...
Netlist warning: No print specified
***** Setting up topology...

Netlist warning: Voltage Node (NET1) does not have a DC path to ground
Netlist warning: Voltage Node (GND) does not have a DC path to ground
***** Device Count Summary ...
       R level 1 (Resistor)                   1
       V level 1 (Independent Voltage Source) 1
       ----------------------------------------
       Total Devices                          2
***** Setting up matrix structure...
***** Number of Unknowns = 3
***** Initializing...

Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!
Netlist warning: Numerically singular matrix found by Amesos, returning zero
 solution to nonlinear solver!

***** Solution Summary *****
	Number Successful Steps Taken:		0
	Number Failed Steps Attempted:		1
	Number Jacobians Evaluated:		62
	Number Linear Solves:			62
	Number Failed Linear Solves:		25
	Number Residual Evaluations:		166
	Number Nonlinear Convergence Failures:	1
	Total Residual Load Time:		0.000463963 seconds
	Total Jacobian Load Time:		7.24792e-05 seconds
	Total Linear Solution Time:		0.000531673 seconds

	Failed DC sweep steps:		
		DC Step # 1

***** Total Simulation Solvers Run Time: 0.0103819 seconds
***** Total Elapsed Run Time:            0.639405 seconds
*****
***** End of Xyce(TM) Simulation
*****

Timing summary of 1 processor
                 Stats                   Count       CPU Time              Wall Time
---------------------------------------- ----- --------------------- ---------------------
Xyce                                         1        0.627 (100.0%)        0.640 (100.0%)
  Analysis                                   1        0.010 ( 1.65%)        0.010 ( 1.62%)
    DC Sweep                                 1        0.010 ( 1.65%)        0.010 ( 1.61%)
      Solve                                  1        0.010 ( 1.64%)        0.010 ( 1.61%)
        Residual                           166        0.001 ( 0.10%)        0.001 ( 0.09%)
        Jacobian                            62        0.000 ( 0.02%)        0.000 ( 0.02%)
        Linear Solve                        62        0.001 ( 0.09%)        0.001 ( 0.09%)
      Failed Steps                           1        0.000 (<0.01%)        0.000 (<0.01%)
  Netlist Import                             1        0.607 (96.88%)        0.620 (96.93%)
    Parse Context                            1        0.583 (92.90%)        0.595 (93.03%)
    Distribute Devices                       1        0.019 ( 3.05%)        0.019 ( 2.99%)
    Verify Devices                           1        0.000 (<0.01%)        0.000 (<0.01%)
    Instantiate                              1        0.000 ( 0.01%)        0.000 ( 0.01%)
  Late Initialization                        1        0.003 ( 0.55%)        0.003 ( 0.55%)
    Global Indices                           1        0.000 ( 0.03%)        0.000 ( 0.03%)
  Setup Matrix Structure

Pretty sure GND is not node 0 by default in xyce unless you

.PREPROCESS REPLACEGROUND TRUE