``` Previewing update of stack 'ptest-dev' Preview...
# golang
Copy code
Previewing update of stack 'ptest-dev'
Previewing changes:

     Type                 Name             Plan          Info
 *   pulumi:pulumi:Stack  ptest-ptest-dev  no change     1 error, 2 info messages
  pulumi:pulumi:Stack: ptest-ptest-dev
    info: map[inst:0x9eaef0]

  pulumi:pulumi:Stack: ptest-ptest-dev
    info: error: program failed: 1 error occurred:
        * marshaling arguments: awaiting input property inst: unrecognized input property type: 0x9eaef0 (func() *pulumi.StringOutput)

  pulumi:pulumi:Stack: ptest-ptest-dev
    error: an unhandled error occurred: program exited with non-zero exit code: 1

error: an error occurred while advancing the preview