Why is this opamp PWM circuit not giving a PWM output?

Question

I thought I'd see a PWM rectangular wave at opamp output, but the simulation gives a constant +Vsat.
Why am I not getting PWM ?

^{simulate this circuit – Schematic created using CircuitLab}

EDIT: After fixing VEE error pointed out by Transistor, still not getting the clean PWM output:(

EDIT: changing opamp to TL072 as suggested by G36 in the comments fixed the issue:

Answer 1

Figure 1. Neatly tucked away under the V_EE label is a -15 V parameter on the V2 supply.

The - terminal of a -15 V supply is +15 V. You have powered the op-amp with two +15 V supplies.

Switch it to +15 V.