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I'm making my first steps with Pulumi, trying to set up a GCP `IAMCustomRole` , however, I'm confused why the docs at <https://www.pulumi.com/registry/packages/gcp/api-docs/projects/iamcustomrole/#inputs> don't show the `orgId` property while the TS compiler (by way of VS Code) seems to insist on it being there

ahh, I guess I'm confusing `organizations.IAMCustomRole` and `projects.IAMCustomRole`

so now I've got a `projects.IAMBinding` and I'm setting `project` in the `IAMBindingArgs` which appeases VS Code, but when running `pulumi preview` I get a stack trace saying `Missing required property 'project'`

so it seems it likes a string literal but not a string variable? Even though the variable seems to work for `serviceaccount.Account` input args

lots of uncanny valley here :disappointed:

String variables should be allowed. If you want help to get to the bottom of the _project_ weirdness, you could post some code here and we'll have a look.

so the `project` import in the first screenshot refers to the variable in the second one

seems reasonably straightforward? and as you can see, `project` is already used for the `Account` input args, where it apparently works fine

Sorry, having a hard time reading pictures of text.. gimme a sec...

Okay, the problem is not related to the first screenshot.

Is the project property correctly set in your stack config file?

I have a `Pulumi.staging.yaml` that has a `gcp:project` key within `config`

(also, it has been working for that `Account`, so why does it fail for this?)

also, so I can make more sense of these errors myself, how do you figure it's a require error? the top-most stack frame in my code points to `IAMBinding` definition

Ah never mind, I see the other line in the screenshot, that looks good.

My thinking so far: IAMBinding needs a _project_ property,  which you're providing but it isn't getting. Therefore, the value is probably _undefined_.

You're importing it from the top level of an imported file. That's likely related. Sorry, got a meeting now, I'll be back later, let me know if you make any progress!

ugh, you're right that the `project` value is `undefined`

but not sure why the import wouldn't work, VS Code seems to find the symbol just fine (to be fair, I'm relatively new at TS)

so that makes it smell like a bug in Pulumi's TS language model thing maybe?