Azure BICEP storage blob child resource failing deployment

I have following BICEP code

param location string = 'canadacentral'

resource storageaccount 'Microsoft.Storage/storageAccounts@2021-02-01' = {
  name: 'btestb1278ba'
  location: location
  kind: 'StorageV2'
  sku: {
    name: 'Standard_LRS'
  }
  properties: {
    supportsHttpsTrafficOnly: true
  }
}



resource blob2 'Microsoft.Storage/storageAccounts/blobServices@2021-09-01' = {
  name: 'default'
  parent: storageaccount
  
}

I get the following error

ERROR: {"status":"Failed","error":{"code":"DeploymentFailed","target":"/subscriptions/XXXX-XXXX-XXXXXX/resourceGroups/appA/providers/Microsoft.Resources/deployments/storResourceDeploy","message":"At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/arm-deployment-operations for usage details.","details":[{"code":"HttpResourceNotFound","message":"The request url https://management.azure.com/subscriptions/XXXX-XXXX-XXXXXX/resourcegroups/appA/providers/Microsoft.Storage/storageAccounts/btestb12789/blobServices/blobz?api-version=2021-02-01 is not found."}]}}

On the portal in rg deployments I see the following error
{
"code": "DeploymentFailed",
"target": "/subscriptions/XXXXXX/resourceGroups/appA/providers/Microsoft.Resources/deployments/storResourceDeploy",
"message": "At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/arm-deployment-operations for usage details.",
"details": [
{
"code": "HttpResourceNotFound",
"message": "The request url https://management.azure.com/subscriptions/XXXXXX/resourcegroups/appA/providers/Microsoft.Storage/storageAccounts/btestb12789/blobServices/blobz?api-version=2021-02-01 is not found."
}
]
}

Not sure what is the reason, its not suppose to find the resource, rather create it, any suggestion will be helpful.
Thanks

I found the problem, the problem was not the above code, however the code below it, I didnt post it earlier because I didnt realize it was the one troubling.

resource storageaccount 'Microsoft.Storage/storageAccounts@2021-02-01' = {
  name: 'btestb1278ba'
  location: location
  kind: 'StorageV2'
  sku: {
    name: 'Standard_LRS'
  }
  properties: {
    supportsHttpsTrafficOnly: true
  }
}



resource blob2 'Microsoft.Storage/storageAccounts/blobServices@2021-09-01' = {
  name: 'default'
  parent: storageaccount
  
}

resource cont 'Microsoft.Storage/storageAccounts/blobServices/containers@2021-02-01' = {
  name: 'sepcont'
  parent: blob2

    
}





resource storageaccount2 'Microsoft.Storage/storageAccounts@2021-02-01' = {
  name: 'btestb12789'
  location: location
  kind: 'StorageV2'
  sku: {
    name: 'Standard_LRS'
  }
  properties: {
    supportsHttpsTrafficOnly: true
  }

  resource blob1 'blobServices' = {
    name: 'blob'
    
  }
}

Precisely the following is not allowed, value of the blob service should be set to default only, it cant have any othername.

  resource blob1 'blobServices' = {
    name: 'blob'
    
  }

Once I changed the name to default, it worked. Thank you all.

The name of the Blob service in your example is default, but this is not the correct name for the Blob service. The Blob service name should be blobServices.

resource blob2 'Microsoft.Storage/storageAccounts/blobServices@2021-09-01' = {
  name: 'blobServices'
  parent: storageaccount
}