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I think the problem is that

<https://github.com/pulumi/examples/blob/master/gcp-py-network-component/config.py#L14>

uses `config.require_object` which expects some sort of serializable structure. Based on its usage in

<https://github.com/pulumi/examples/blob/master/gcp-py-network-component/network.py#L30>

it looks like it expects an array perhaps?

Maybe calling `pulumi config set --path gcp-py-network-component:subnet_cidr_blocks[0] '172.2.0.0/16'`
would work?

<https://www.pulumi.com/docs/intro/concepts/config/#structured-configuration> for more details on structured configuration

Helllo <@U01R1NV536E>, thanks for the answer I'll check it and come back to you to tell you what's up :) thanks a lot already for the answer :slightly_smiling_face:

I try your command (pulumi config set --path gcp-py-network-component:subnet_cidr_blocks[0] '172.2.0.0/16') and magic it's work ! Thank you so much :slightly_smiling_face: