Azure credentials have not been set up or have expired - powershell

Question

I have scheduled a PowerShell script to execute a pipeline in Azure.
Have generated the login script(ProfileContext.ctx) using Login-AzureRMAccount
Below is the code to schedule:
$path = "D:\ProfileContext.ctx"
Import-AzureRmContext -Path $path
$dfn = "salesprod"
$rgn = "sale-dw"
$df=Get-AzureRmDataFactory -ResourceGroupName $rgn -Name $dfn
$ISTstartdate = get-date
#Set Pipeline active period
$UTCstartdate = $ISTstartdate.touniversaltime().addminutes(5)
$UTCenddt = $UTCstartdate.AddHours(5)
$pipelinename = "SalesPipeline"
Set-AzureRmDataFactoryPipelineActivePeriod -ResourceGroupName $rgn -PipelineName $pipelinename -DataFactoryName $dfn -StartDateTime $UTCstartdate -EndDateTime $UTCenddt -Force
Above code works fine for 2 or 3 days but then I start getting below issue:
Your Azure credentials have not been set up or have expired, please run Login-AzureRMAccount to set up your Azure credentials.
At D:\RunPipeline.ps1
Below are the version nos:
PSVersion - 5.0.10586.117
Azure - 4.2.1

Answer 1

I resolved it by using below work around: This would auto login for me and then I can schedule without a context file:
$accountName = "pqr#xyz.com"
$password = ConvertTo-SecureString "mypwd" -AsPlainText -Force
$credential = New-Object System.Management.Automation.PSCredential($accountName, $password)
Login-AzureRmAccount -Credential $credential
Get-AzureRmResource

Answer 2

Add Joseph's answer. Your answer only works on Azure AD account, Microsoft account does not support non-interactive login. According to your scenario, I suggest you could use Service Principal, it is more safer and not leak your account information. What is Service Principal?
When you have an app or script that needs to access resources, you can
set up an identity for the app and authenticate the app with its own
credentials. This identity is known as a service principal.
You could refer to refer to this link to create a new service principal and give Contributor role. You could use the following command to login your subscription.
$subscriptionId=""
$tenantid=""
$clientid=""
$password=""
$userPassword = ConvertTo-SecureString -String $password -AsPlainText -Force
$userCredential = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $clientid, $userPassword
Add-AzureRmAccount -TenantId $tenantid -ServicePrincipal -SubscriptionId $subscriptionId -Credential $userCredential

Answer 3

I came across with same issue today but after update Azure PowerShell Modules to the latest version, all good. You can do this while easily using Update-Module or just go ahead and use Install-Module AzureRm -Force.