platform exec: Cannot install appx package exit status 65535 The term 'Add-AppxPackage' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:100 + $appx_file = "C:\Users\Admin\AppData\Local\Temp\MCentersUWP_1.0.8.0_x64_Debug .appx";Add-AppxPackage <<<< $appx_file;if( -not $? ) {exit -1;};Start-Sleep -s 2;$line = Get-WinEvent Microsoft-Windows-AppxDeploymentServer/Operational -Old est | Select-Object -Last 100 | Where-Object { $_.Id -eq '400' } |Select-Object -Last 1 | Select Message;$line = $line.Message | Out-String -Width 999;if( $li ne -eq '' -or $line -eq $null ) {Write-Output 'Failed to find installed appx pa ckage'; exit -1;};$appx_name = $line.Split('_')[0].Split(' ')[-1];if( $appx_nam e -eq '' -or $appx_name -eq $null ) {Write-Output 'Failed to parse installed ap px package'; exit -1;};$xml_path = (Get-AppxPackage $appx_name).InstallLocation + '\AppxManifest.xml';$appx_family = (Get-AppxPackage $appx_name).PackageFamil yName;if (-not (Test-Path -Path $xml_path)) {exit -1;};[xml]$xml_data = Get-Con tent -Path $xml_path;$appx_type = $xml_data.Package.Applications.Application.Id ;$appx_family + '!' + $appx_type; + CategoryInfo : ObjectNotFound: (Add-AppxPackage:String) [], Com mandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException