This file covers the return from the github download engine to the epic games launcher engine

Version: 5.6.1 OS: Windows

Overview

Goal
Process Overview
Log

Goal

No longer require using the github unreal engine download, which takes a long time to install and fix (more than 3 hours for me), takes up approximately 250 GB, and requires an Epic Games account.
Switching (back) to the Epic Games Launcher version, which is approximately 10GB, last I checked. Compiling significantly less necessary (and not measured in hours).

Process Overview

Sentry disabled for this.

Only one major bug found: an error with SolverBody.h

put paratheses around a line in SolverBody.h (part of the engine); frequent error, does not actually make sense (operator precedence should make paratheses unnecessary).
Info:
File address: \UE_Folder\Engine\Source\Runtime\Experimental\Chaos\Public\Chaos\Evolution\SolverBody.h
Line: 101
Change: std::numeric_limits<FSolverReal>::min -> (std::numeric_limits<FSolverReal>::min) : after return , followed by ()
Note: Files were read-only b/c git, had to be set to writable (prompted on attempting change)

Error was discovered after attempting to open project by building it in Visual Studio. Unreal simply gave “failed to compile” and said to use an IDE.

Log

This log was created and made over the problem solving process.

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Installed 5.6 and 5.7

launched 5.6
attempted to open project
stated version change, prompt

hit “open a copy”
failed: no write access?

Duplicated project manually. (file explorer)
Success.

Used “switch engine version” option
selected “5.6” (not a file path)
generating files bar
left, unable to verify if any errors, but none clear.

opened up .uproject
prompted to rebuild list of things, including sentry

chose yes
loading bar
failed, modules and stuff out of date

attempted to open .sln
failed, crash

generating v.s. project files
success

opening VS
launching from VS
error: SolverBody.h line; scope resolution operator :: versus function call operator ()

attempting to fix line 101 in file
C:\Program Files\Epic Games\UE_5.6\Engine\Source\Runtime\Experimental\Chaos\Public\Chaos\Evolution\SolverBody.h
warning:
From; source control, git
“You are trying to edit read only files. Do you want to mark these files as writable?”
Options: ok or cancel

Selected ok
fix was putting paratheses around
std::numeric_limits<FSolverReal>::min
success.

Attempting build from VS