create_immv issue on aws Ubuntu even after create extention

Hello all.

I am not able to use create_immv in postgresql 16.6 even after
installing it and doing create extention.

I did a git clone of the repository and then make sudo make install to
install it.

The issue is not happening on my local ubuntu 24.04 machine but on
ubuntu 24.04 on aws free tier.

All dependencies are in place, that's why the extention got installed in
the first place.

I get the error "function create_immv(unknown, unknown) does not exist.

all the tables related to this view exist, data is present and same
setup works perfectly on my local machine, same OS and postgresql version.

Can someone suggest what could be the solution?

Regards.

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*Krishnakant Mane*
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