Import-Module : Could not load file or assembly ‘System.Management.Automation

PowerShell has become an integral part of managing various Microsoft services and platforms. However, encountering issues when trying to import modules, especially when dealing with different versions, can be a frustrating experience. One such issue is the ‘System.Management.Automation’ assembly error that users might face while working with the PnP (Patterns and Practices) PowerShell module.

The Error: The system cannot find the file specified. At line:1 char:1 + Import-Module PnP.PowerShell

Users might come across an error message resembling:

Identifying the Problem: This error often occurs due to compatibility issues between specific versions of the PnP PowerShell module and the required ‘System.Management.Automation’ assembly.

Solution Steps:

1. Uninstallation: Start by uninstalling all versions of the PnP PowerShell module:
   Uninstall-Module -Name "PnP.PowerShell"

2. Installation of Compatible Version: Install the correct version of the PnP PowerShell module that works without the ‘System.Management.Automation’ assembly issue:
   Install-Module -Name "PnP.PowerShell" -RequiredVersion 1.12.0 -Force -AllowClobber

3. Understanding the Compatibility: The issue primarily arises when using newer versions like PnP PowerShell 2.1.1, which might have compatibility conflicts with the ‘System.Management.Automation’ assembly.

Additional Tips:

• Ensure PowerShell and its modules are up-to-date.
• Check for dependencies and system environment changes that might affect module imports.
• Verify permissions to import modules and access necessary files.

Encountering errors related to specific assemblies like ‘System.Management.Automation’ while working with PowerShell modules like PnP can be daunting. However, following specific steps to uninstall existing versions and install a compatible version, such as 1.12.0, can effectively resolve this issue. Understanding compatibility between modules and associated assemblies is crucial for a seamless PowerShell experience.

Troubleshooting PowerShell errors often involves identifying version compatibility and ensuring proper dependencies. Resolving the ‘System.Management.Automation’ assembly issue by installing the compatible PnP PowerShell version can save time and streamline your PowerShell workflow.