Here's the error detail:
{
"Code": "BadRequest",
"Message": "The requested app service plan cannot be created in the current resource group because it is hosting Linux apps. Please choose a different resource group or create a new one.",
"Target": null,
"Details": [
{
"Message": "The requested app service plan cannot be created in the current resource group because it is hosting Linux apps. Please choose a different resource group or create a new one."
},
{
"Code": "BadRequest"
},
{
"ErrorEntity": {
"ExtendedCode": "59314",
"MessageTemplate": "The requested app service plan cannot be created in the current resource group because it is hosting Linux apps. Please choose a different resource group or create a new one.",
"Parameters": [],
"Code": "BadRequest",
"Message": "The requested app service plan cannot be created in the current resource group because it is hosting Linux apps. Please choose a different resource group or create a new one."
}
}
],
"Innererror": null
}