PyBaMM Version

23.9

Python Version

3.9

Describe the bug

ValueError: Geometry parameters must be Scalars after parameter processing.

Steps to Reproduce

import pybamm
model = pybamm.lithium_ion.SPMe()
param = pybamm.ParameterValues('Prada2013')
param['Current function [A]'] = 1*param['Nominal cell capacity [A.h]']
param.update({'Positive particle radius [m]': "[input]"})
sim = pybamm.Simulation(model=model,parameter_values=param)
sol = sim.solve([0,3600],inputs={'Positive particle radius [m]':5e-08},calculate_sensitivities=True)
J = sol['Voltage [V]'].sensitivities['Positive particle radius [m]']

Relevant log output

No response