Error:Blueprint resource group placeholder

I just encountered this same issue using powershell. It appeared to be because I'd defined the resource group location in both my blueprint.json and assignment.json files.

eg:

blueprint.json

  "resourceGroups": {
    "mainRG": {
      "location": "australiaeast",
      "dependsOn": []
    }
  }

assignment.json

  "resourceGroups": {
    "mainRG": {
      "name": "rg-myresourcegroup",
      "location": "australiaeast"
    }
  }

Trying to rule out Az CLI cmds as the root cause. Can you retry the blueprint assignment via PowerShell instead?
Here's a sample PS cmd below for your reference.

New-AzBlueprintAssignment -Blueprint $blueprint -Name 'assignMyBlueprint' -AssignmentFile .\blueprintAssignment.json

I've reached out to the blueprint team for help with this. Hope to have an update by Monday. thanks for your patience.

Hi

Still getting the same error when shorting the RG.

Thanks for sharing @D Ds . Let me investigate on my end to see if I can reproduce this issue. In the meantime, can you try with a new, diff RG (preferably with a shorter name) to see if the error persists. I should have an update in 24 hours.

Cheers.

Hi, thanks, below is the complete cmd and out of the error. Yes the resource group has been defined , see snip of all artifacts.

devuser@ad01e081df88:/tmp$ az blueprint assignment create --name 'IO-Default-Network-Config-test' --location 'South Africa North' --subscription "[sub id]" --resource-group-value artifact_name="io-default-vnet" name="io-default-vnet" location="South Africa North" --blueprint-version "/providers/Microsoft.Management/managementGroups/IO-Management-Group/providers/Microsoft.Blueprint/blueprints/IO-Default-Network-Config" --parameters @Rebecca .json
Command group 'blueprint' is experimental and not covered by customer support. Please use with discretion.
This assignment is invalid. Error: 'Blueprint resource group placeholder 'io-default-vnet' does not exist in blueprint '/providers/Microsoft.Management/managementGroups/IO-Management-Group/providers/Microsoft.Blueprint/blueprints/IO-Default-Network-Config/versions/1.4'.'