Ignore bins

Coverage
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1

Hello!
Why can I not use ignore bin to default values?

2

In reply to Shashank Gurijala:

Can you elaborate ?

3

In reply to Rahulkumar:

illegal_bins a2 []  =   default//fine

ignore_bins a2 []   =   default//error
4

In reply to Shashank Gurijala:
Dave have answered here…
https://verificationacademy.com/forums/coverage/how-ignore-default-clause-covergroup