How to troubleshoot New-AzureRmResourceGroupDeployment ‘parameter cannot be found’ errors

Scenario: You have an Azure RM deployment template JSON file. You initiate a deployment with the New-AzureRmResourceGroupDeployment PowerShell cmdlet and pass in some custom parameters. You immediately hit this all too common error: “New-AzureRmResourceGroupDeployment : A parameter cannot be found that matches parameter name ‘<myParameter>’“.

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