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Help with PSpice error

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Iiest2021

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I am facing this error in PSpice , pls anyone help me , its really argent for me

PSpice_pro_1.png
PSpice_pro_2.png
 

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Relevant netlist part is missing in the screenshot. Most likely reason, using a component without SPICE model (wrong library).
 

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Your oscillator schematic shows no output point.
Opamp U2A is not needed.
Opamp U1A is missing a negative feedback resistor.
The resistance of R3 is too low.
Look here:

oscillator.png
 

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