hmm, trying to import an autoscaling group, getting an error:

❯ pulumi import aws:autoscaling/group:Group platformCoreEcsCluster platform-dev
Previewing import (dev)

View Live: [redacted]

     Type                      Name                    Plan       Info
     pulumi:pulumi:Stack       pulumi-experiment-dev              1 error
 =   └─ aws:autoscaling:Group  platformCoreEcsCluster  import     4 errors

Diagnostics:
  pulumi:pulumi:Stack (pulumi-experiment-dev):
    error: preview failed

  aws:autoscaling:Group (platformCoreEcsCluster):
    error: aws:autoscaling/group:Group resource 'platformCoreEcsCluster' has a problem: Invalid combination of arguments: "launch_configuration": one of `launch_configuration,launch_template,mixed_instances_policy` must be specified. Examine values at 'Group.LaunchConfiguration'.
    error: aws:autoscaling/group:Group resource 'platformCoreEcsCluster' has a problem: Invalid combination of arguments: "launch_template": one of `launch_configuration,launch_template,mixed_instances_policy` must be specified. Examine values at 'Group.LaunchTemplate'.
    error: aws:autoscaling/group:Group resource 'platformCoreEcsCluster' has a problem: Invalid combination of arguments: "mixed_instances_policy": one of `launch_configuration,launch_template,mixed_instances_policy` must be specified. Examine values at 'Group.MixedInstancesPolicy'.
    error: Preview failed: one or more inputs failed to validate

Anyone else ever seen this?

are you using a launch configuration?