Azure clone app via Powershell - InternalServerError - azure

Question

I've been following this guide to cloning an existing app. I'm running the Az Powershell Module via Docker.
Here's what I ran:
$destapp = New-AzWebApp -ResourceGroupName HLP-API-NEW -Name hlp-api-new -Location "UK South" -AppServicePlan hlp-api-plan-new -SourceWebApp $srcapp
HLP-API-NEW is a new resource group that I created; hlp-api-plan-new is likewise a new service plan.
Here's how I got $srcapp:
$srcapp = Get-AzWebApp -ResourceGroupName HLP-API -Name api-hlp
The service plan / resource group nams are definitely correct. I get the following error:
New-AzWebApp: Long running operation failed with stauts 'InternalServerError'
Does anyone know why this might be?

Answer 1

Please make sure your app is not under the below conditions. if it is in the below condition, we can't be able to clone it.
Restrictions to clone app
Auto scale settings are not cloned
Backup schedule settings are not cloned
VNET settings are not cloned
App Insights are not automatically set up on the destination app
Easy Auth settings are not cloned
Kudu Extension are not cloned
TiP rules are not cloned
Database content is not cloned
Outbound IP Addresses changes if cloning to a different scale unit
Not available for Linux Apps
Managed Identities are not cloned
Not available for Function Apps
If your app is not in the above criteria, you can clone it.
Ways follows
1. Using Slot parameter
To clone an existing app including all associated deployment slots, you need to use the Slots parameter.
$srcappslot = Get-AzWebAppSlot -ResourceGroupName <Your Resource Group> -Name <Your app name> -Slot <slot name>
$destapp = New-AzWebApp -ResourceGroupName <Your Resource Group> -Name <Your new app name> -Location <location to create app> -AppServicePlan <App service plan name> -SourceWebApp $srcappslot
2. Using the new App Service plan
$srcapp = Get-AzWebApp -ResourceGroupName <Your Resource Group> -Name <Your app name>
New-AzAppServicePlan -Location "Central US" -ResourceGroupName <Your Resource Group> -Name <App Service plan Name> -Tier Standard
$destapp = New-AzWebApp -ResourceGroupName <Your Resource Group> -Name <new app name to create> -Location <Location to create app> -AppServicePlan <Your new app service name> -SourceWebApp $srcapp
3. Using Existing App Service plan
$srcapp = Get-AzWebApp -ResourceGroupName <Your Resource Group> -Name <Your app name>
$destapp = New-AzWebApp -ResourceGroupName <Your Resource Group> -Name <new app name to create> -Location <Location to create app> -AppServicePlan <Specify exact App service file path (APP SERVICE PLAN> PROPERTIES>RESOURCEID)> -SourceWebApp $srcapp

Answer 2

I have the same problem, I don't understand what's wrong with my command. While scouring the Internet I found this command which is leading me towards a solution. You may find it helpful as well:
PS> Resolve-AzError
This provided me the clue I needed to chase:
Message : Long running operation failed with status 'InternalServerError'.
ServerMessage : Restore failed with errors: Detail: Hostname 'abc.somedomain.com' conflicts with an already existing hostname.
ExtendedCode: 04005
Good luck!