portable Alpha error when installing to flash drive

Daniel McGee

Hi all

Does anyone understand what the below error message means?

When I try to install to a flash drive using the stable versions of  nvda2021.2 and the Update channel selector add-on (
Version: 1.1

I get the following message below.

NVDA version alpha-24237,a77aff3c is available.
Download update Close

[Window Title]

Failed to create portable copy: [WinError 123] The filename, directory name, or volume label syntax is incorrect: 'D:\\" --config-path D:'