Unable to build WIndows IOT core Image
I am following instructions to build a Windows IOT Core flash.ffu file. https://downloads.up-community.org/download/windows-iot-core-bsp-and-guide/
I always get an error on the BuildImage Step
Package is missing from \?\C:\Program Files (x86)\Windows Kits\10\MSPackages\Retail\AMD64\fre\Microsoft.IoTUAP.IoTUAPProductSpecificFM~31bf3856ad364e35~AMD64~~.cab
Even when I do no customization and type the exact commands in the document screenshots, I get the error. (except your example has the BSPName as APLx64 instead of UPAPL in the Add-IotProduct step). I have installed all the versions of the tools from the current https://docs.microsoft.com/en-us/windows-hardware/manufacture/iot/set-up-your-pc-to-customize-iot-core web page.