GNT transistor model setup issue

[promach]

Why spectre throws me the following error for the opamp example ?

I am not sure why spectre could not locate the NPNCUS and PNPCUS models which could be found inside the GNT path

Note:  I already followed the instruction inside https://github.com/promach/AC_analysis_methods/blob/main/GNT/getting_started.pdf and modified both .cdsinit as well as cds.lib

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[promach]

The PNPCUS and NPNCUS issue is solved by manually inserting the bjt model library file inside spectre menu: Setup → Model Libraries

However, I am still facing with the following error

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[promach]

Solved: See https://community.cadence.com/cadence_technology_forums/f/custom-ic-design/48241/spectre-invalid-component-name-was-given-as-value-of-parameter/1376102

However, I am getting entirely different and strange (the opamp seems not working at all) simulation waveform as compared to the waveform on page 12 of getting_started.pdf

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