Az PowerShell and bicepparam string issue

[MilesCameron-DMs]

Hi there,

I am using Az PowerShell v10.4.1 and trying to use the cmdlets Test-AzDeployment or New-AzDeployment and i am utilizing a bicepparam file.

However, when i run those cmdlets i get the following error (i have amended the parameter name):

InvalidTemplate - Deployment template validation failed: 'The provided value for the template parameter 'parTestPar' is not valid. Expected a value of type 'String, Uri', but 
received a value of type 'Object'.

If i run the equivalent with the CLI i do not get this issue and it reads both the bicep file and bicepparam file OK.

Here is the pertinent code:

main.bicep

@description('Name of the VNET to add a subnet to')
param parExistingVnetName string

@description('Name of the existing VNETs resource group')
param parExistingVnetRg string

param vnetAddressSpace string

main.bicepparam

using './main.bicep'

param parExistingVnetName = 'vnet-name'
param parExistingVnetRg = 'rg-name'

Please also note, if i remove the params from the parameter file and set the value in the main bicep file - it also works.

Seems like there is an issue with Az Powershell and the bicepparams file?

Examples of what i am running:

DOESNT WORK:

New-AzResourceGroupDeployment -ResourceGroupName test-rg -TemplateParameterFile .\main.bicepparam -TemplateFile .\main.bicep -WhatIf

WORKS:

az deployment group what-if --resource-group test-rg --template-file .\main.bicep --parameters .\main.bicepparam

[MilesCameron-DMs]

Potential related issues:

#11983
#11840

[bonsel30]

I have the same error: azure cli works, azure powershell does not for deploying resources with a bicepparam file.
powershell Az version: 10.4.1
Bicep CLI version 0.21.1 (d4acbd2)

[MilesCameron-DMs]

As per #11983 (comment)

I moved to Az Powershell version 10.3.0 and that fixed the issue for me.

[devdeer-alex]

Still got this issue here.

Here my system:

PS> Get-InstalledModule -Name Az

Version              Name                                Repository           Description
-------              ----                                ----------           -----------
10.4.1               Az                                  PSGallery

PS> Get-InstalledModule -Name Az.Resources

Version              Name                                Repository           Description
-------              ----                                ----------           -----------
6.11.1               Az.Resources                        PSGallery  

PS> bicep -v        
Bicep CLI version 0.21.1 (d4acbd2a9f)

main.bicep:

targetScope = 'subscription'

@allowed([
  'West Europe'
  'North Europe'
  'Global'
])
@description('The location where to create the resources in.')
param location string = 'West Europe'

main.bicepparam:

using './main.bicep'

param location = 'West Europe'

Test-AzDeployment `
    -Name 'deploy' `
    -Location 'westeurope' `
    -TemplateFile .\main.bicep `
    -TemplateParameterFile .\main.bicepparam 

gives

InvalidTemplate - Deployment template validation failed: 'The provided value for the template parameter 'location' is not valid. The value '{
  "value": "West Europe"
}' is not part of the allowed value(s): 'West Europe,North Europe,Global'.'.

[anthony-c-martin]

Please use Azure/azure-powershell#22869 to track this. The fix has been merged, but it hasn't yet been released, so it makes sense that you are seeing this issue.

[maythamfahmi]

I have had the same issue with version 10.4.1.

I have installed the latest version at the current time of this post v. 11.1.0 from (https://www.powershellgallery.com/packages/Az/11.1.0) and it helped resolve the issue.

Install-Module -Name Az -RequiredVersion 11.1.0