What is causing a load argument error in Powershell when attempting to run Xaml code?

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There could be multiple causes for a load argument error in Powershell when attempting to run Xaml code. Some of the common causes are:

1. Incorrect path or filename - Make sure that you have entered the correct path and filename for the Xaml file that you are trying to run.

2. Missing dependencies - If your Xaml code uses external libraries or dependencies, make sure that they are properly installed and referenced in your Powershell script.

3. Invalid Xaml code - Check if your Xaml file has any syntax errors or typos that could be causing the issue.

4. Unsupported PowerShell version - Make sure that you are using a version of Powershell that is supported by the Xaml code you are trying to run.

5. Insufficient privileges - If your script requires administrative privileges to run, make sure that you are running Powershell as an administrator.