ARM模板错误'properties.api‘是否来自参数文件无效？

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "apiVersion": {
      "type": "string",
      "defaultValue": "2021-01-01",
      "metadata": {
        "description": "The API version to use for the resource."
      }
    }
  },
  "resources": [
    {
      "type": "Microsoft.Storage/storageAccounts",
      "apiVersion": "[parameters('apiVersion')]",
      "name": "mystorageaccount",
      "location": "eastus",
      "properties": {
        "accountType": "Standard_LRS"
      }
    }
  ]
}