No matter how you like to participate in developer communities, Pulumi wants to meet you there. If you want to meet other Pulumi users to share use-cases and best practices, contribute code or documentation, see us at an event, or just tell a story about something cool you did with Pulumi, you are part of our community.

Pulumi Community

Did anyone encounter an issue with setting an output of another stack as an input for current stack? I’m getting the following issue:

```aws:lambda/function:Function resource 'DEV-Lambda' has a problem: Computed attributes cannot be set: Computed attributes cannot be set, but a value was set for "vpc_config.0.vpc_id".. Examine values at 'Function.VpcConfig.VpcId'```

No, it works fine for me. That doesn't look like is a stack output / input problem, it looks like you're assigning a value to a field that shouldn't have a value assigned (e.g. ARN).

<@U012UJTT55M> that’s weird… I’ve imported a few resources from my AWS account to `stackA` and trying to use them in `stackB` by using the `stackReference` feature. Why does it fail? The resources exists (as I imported them)

<@U012UJTT55M> I’m even trying to hardcode the values but I still get the same error message. How can it be :thinking_face:

Yes, it isn't to do with the stack references (since the hardcoded values have the same problem).

Have you already finished importing the resource? It's now in your stack?

Is the _import_ opt still set? You need to remove that after the import is complete.

(Not relevant if you imported using _pulumi import_)

Can you copy the code where you create the lambda?

The error message suggests that there's a `lambda.vpcConfig[0].vpcId`, which isn't correct. Is that in your code?

What I have is the following config on the lambda:

```vpcConfig = {
  vpcId: 'vpc-id-of-vpc',
  subnetIds: ['subnet-0x9173283495'],
  securityGroupIds: ['sg-jdfg93457345'],
};```


Omitting the `vpcId` does not give me this error anymore

I’ve checked that the ID is correct many many times. What could be the issue :confused:

It looks like there's an array going into the json sent to the AWS API.. seems unlikely, but that's how I read the error message..

Looks like you're using weakly-typed javascript? Rather than TypeScript?

Maybe that's possible with javascript.. not sure.

```{
        /**
         * List of security group IDs associated with the Lambda function.
         */
        securityGroupIds: pulumi.Input&lt;pulumi.Input&lt;string&gt;[]&gt;;
        /**
         * List of subnet IDs associated with the Lambda function.
         */
        subnetIds: pulumi.Input&lt;pulumi.Input&lt;string&gt;[]&gt;;
        vpcId?: pulumi.Input&lt;string&gt;;
    }```

You're not doing anything like `func.vpcConfig[0] = vpcConfig`? Because that's the only thing I can think of. If that's not it, then you'll need someone smarter than me...\

you’re smart enough! I’m not doing this kind of assignment :confused: