MID Server pre-upgrade check fails with PSReadLine/PSConsoleReadLine/WinIOError error - Known Error

MID Server pre-upgrade check fails with PSReadLine/PSConsoleReadLine/WinIOError error Description MID Server pre-upgrade PowerShell check fails with PSReadLine/PSConsoleReadLine/WinIOError error, preventing the upgrade happening.

The error starts with: Oops, something went wrong. Please report this bug with the details below. resulting in: Aborting MID Server upgrade due to pre-upgrade check failure

Unfortunately the known Microsoft bug in PSReadLine module doesn't throw any exception. It just adds the error message to the output, which breaks the code that parses the output as part of detecting Powershell. https://github.com/PowerShell/PSReadLine/issues/1390 PSReadline 2.0.0 does not work on PS 5.1 Windows 2012R2 servers

Steps to Reproduce

Install a MID Server on a windows server host that is subject to the PSReadLine bug. e.g. PowerShell 5.1 on Windows 2012R2 servers, but without .NET 4.6.1. Upgrade it

The pre-upgrade check will fail with something like this in the MID Server agent log:

07/21/19 21:35:27 (215) AutoUpgrade.3600 WARNING *** WARNING *** no context : null 07/21/19 21:35:27 (887) AutoUpgrade.3600 WARNING *** WARNING *** Unable to parse PowerShell PID Oops, something went wrong . Please report this bug with the details below. Report on GitHub: https://github.com/lzybkr/PSReadLine/issues/new ----------------------------------------------------------------------- Last 0 Keys: