From fbf40fa98e85bf8730aa6475b7640c1d2d84adc7 Mon Sep 17 00:00:00 2001
From: DrIOS <58635327+DrIOSX@users.noreply.github.com>
Date: Mon, 13 Jan 2025 16:03:30 -0600
Subject: [PATCH] add: method to avoid assembly already loaded error

---
 CHANGELOG.md                                 |  1 +
 helpers/Build-Help.ps1                       |  2 +-
 source/Private/Assert-ModuleAvailability.ps1 | 15 ++++++++++++---
 3 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9bbfb2d..35acd63 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ The format is based on and uses the types of changes according to [Keep a Change
 
 - Added additional error handling to connect function to identify problematic steps when they occur.
 - Added new method of verifying spo tenant for Connect-SPOService branch of connect function.
+- Added method to avoid "assembly already loaded" error in PNP Powershell function on first run, subsequent runs in the same session will still throw the error.
 
 ## [0.1.26] - 2024-08-04
 
diff --git a/helpers/Build-Help.ps1 b/helpers/Build-Help.ps1
index 034b503..c35f681 100644
--- a/helpers/Build-Help.ps1
+++ b/helpers/Build-Help.ps1
@@ -5,7 +5,7 @@ Import-Module .\output\module\M365FoundationsCISReport\*\*.psd1
 
 
 <#
-    $ver = "v0.1.26"
+    $ver = "v0.1.27"
     git checkout main
     git pull origin main
     git tag -a $ver -m "Release version $ver refactor Update"
diff --git a/source/Private/Assert-ModuleAvailability.ps1 b/source/Private/Assert-ModuleAvailability.ps1
index 807594f..09c193f 100644
--- a/source/Private/Assert-ModuleAvailability.ps1
+++ b/source/Private/Assert-ModuleAvailability.ps1
@@ -20,6 +20,17 @@ function Assert-ModuleAvailability {
                 else {
                     Write-Verbose "$ModuleName module is already at required version or newer."
                 }
+                if ($ModuleName -eq "Microsoft.Graph") {
+                    # "Preloading Microsoft.Graph assembly to prevent type-loading issues..."
+                    Write-Verbose "Preloading Microsoft.Graph assembly to prevent type-loading issues..."
+                    try {
+                        # Run a harmless cmdlet to preload the assembly
+                        Get-MgGroup -Top 1 -ErrorAction SilentlyContinue | Out-Null
+                    }
+                    catch {
+                        Write-Verbose "Could not preload Microsoft.Graph assembly. Error: $_"
+                    }
+                }
                 if ($SubModules.Count -gt 0) {
                     foreach ($subModule in $SubModules) {
                         Write-Verbose "Importing submodule $ModuleName.$subModule..."
@@ -30,11 +41,9 @@ function Assert-ModuleAvailability {
                     Write-Verbose "Importing module $ModuleName..."
                     Import-Module -Name $ModuleName -RequiredVersion $RequiredVersion -ErrorAction Stop -WarningAction SilentlyContinue | Out-Null
                 }
-
         }
         catch {
             throw "Assert-ModuleAvailability:`n$_"
         }
     }
-
-}
+}
\ No newline at end of file