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I think your `import` statements might be incorrect given the `undefined` errors.

Beyond that, you shouldn't be instantiating any `*Ptr` objects. Instead you should use `ServerAzureadAdministratorArgs` directly.

So your code should look like this instead:
```azureADAdministratorArgs := &amp;mssql.ServerAzureadAdministratorArgs{
            LoginUsername: pulumi.String(azureADAdministratorInput[0].LoginUsername),
            ObjectId:      pulumi.String(azureADAdministratorInput[0].ObjectID),
            TenantId:      pulumi.StringPtr(azureADAdministratorInput[0].TenantID),
        }```

Thanks for the info on instantiating `*Ptr` objects.
I have some other objects from `mssql` like `mssql.NewElasticPool` that aren't giving that same error. I noticed that Azure SQL Servers were migrated to `mssql` from `sql`. Should I be using the old version?

Here's my import statement:
```import (
	"<http://github.com/pulumi/pulumi-azure/sdk/v3/go/azure/dns|github.com/pulumi/pulumi-azure/sdk/v3/go/azure/dns>"
	"<http://github.com/pulumi/pulumi-azure/sdk/v3/go/azure/mssql|github.com/pulumi/pulumi-azure/sdk/v3/go/azure/mssql>"
	"<http://github.com/pulumi/pulumi/sdk/v2/go/pulumi|github.com/pulumi/pulumi/sdk/v2/go/pulumi>"
	"<http://github.com/pulumi/pulumi/sdk/v2/go/pulumi/config|github.com/pulumi/pulumi/sdk/v2/go/pulumi/config>"
)```

I think I see what happened. My `go.mod` file had `v3.0.0` listed for `<http://github.com/pulumi/pulumi-azure/sdk/v3|github.com/pulumi/pulumi-azure/sdk/v3>`. I ran `go get <http://github.com/pulumi/pulumi-azure/sdk/v3|github.com/pulumi/pulumi-azure/sdk/v3>` and it's getting past that issue