Apply-PnPProvisioningTemplate : Input string was not in a correct format

Question

I try to export and import template using below PnP powershell scripts. There is no issue while exporting the template. But I get "Apply-PnPProvisioningTemplate : Input string was not in a correct format." message while applying template to target site collection. I couldn't find any error message in the log file. How can I solve this issue?

Export:

Connect-PnPOnline –Url https://tenant.sharepoint.com/sites/sourcesitecoll –Credentials (Get-Credential)
Get-PnPProvisioningTemplate -out template.pnp

Import:

Connect-PnPOnline –Url https://tenant.sharepoint.com/sites/targetsitecoll –Credentials (Get-Credential)
Set-PnPTraceLog -On -LogFile "C:\Works\PnP\logs.txt" -Level Debug
Apply-PnPProvisioningTemplate -Path "C:\Works\PnP\template.pnp"

Error message:

Apply-PnPProvisioningTemplate : Input string was not in a correct format. At line:1 char:1 + Apply-PnPProvisioningTemplate -Path "C:\Works\PnP\template.pnp ... + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : WriteError: (:) [Apply-PnPProvisioningTemplate], FormatException + FullyQualifiedErrorId : EXCEPTION,SharePointPnP.PowerShell.Commands.Provisioning.Site.ApplyProvisioningTemplate

SharePointPnPPowerShellOnline version is "3.10.1906.0"

Answer 1

This may not answer but you could try it as it's working in my environment.

Get:

#region Variables 
$Username = "user@tenant.onmicrosoft.com" 
$Password = "password" 
$siteURL = "https://tenant.sharepoint.com/sites/lee" 

#endregion Variables

#region Credentials 
[SecureString]$SecurePass = ConvertTo-SecureString $Password -AsPlainText -Force 
[System.Management.Automation.PSCredential]$PSCredentials = New-Object System.Management.Automation.PSCredential($Username, $SecurePass) 
#endregion Credentials

Connect-PnPOnline -Url $siteURL -Credentials $PSCredentials

$listName = "Site Assets";
$outputTemplateFileName = "C:\Lee\Script\template.xml";

$template = Get-PnPProvisioningTemplate -OutputInstance -Handlers Lists
$listTemplate = $template.Lists | Where-Object { $_.Title -eq $listName }
$template.Lists.Clear()
$template.Lists.Add($listTemplate)
Save-PnPProvisioningTemplate -InputInstance $template -Out $outputTemplateFileName

Apply:

#region Variables 
$Username = "user@tenant.onmicrosoft.com" 
$Password = "password" 
$siteURL = "https://tenant.sharepoint.com/sites/wiki" 

#endregion Variables

#region Credentials 
[SecureString]$SecurePass = ConvertTo-SecureString $Password -AsPlainText -Force 
[System.Management.Automation.PSCredential]$PSCredentials = New-Object System.Management.Automation.PSCredential($Username, $SecurePass) 
#endregion Credentials

Connect-PnPOnline -Url $siteURL -Credentials $PSCredentials

Apply-PnPProvisioningTemplate -Path "C:\Lee\Script\template.xml"