Unhandled exception when building blank project: Version ("1.2") is not supported version

anonymous_user_f78280461 · May 20, 2022, 3:32pm

Hello. Trying to locate this file path and having some trouble. I can locate C:\users\window username\documents. I am not seeing the folder named Unreal Engine

LowerDeckBoy · May 20, 2022, 3:45pm

Go to %appdata%\Unreal Engine\UnrealBuildTool - there it is

anonymous_user_f78280461 · May 20, 2022, 4:05pm

Awesome! Thanks for locating the file for me. If I am correct all I need to do is much this out of app data and into documents then I should be good. I am doing this step after rolling back my MVSC

JJ_johnny95 · May 20, 2022, 6:22pm

So what’s the solution?

Helskor · May 21, 2022, 3:08pm

Yeah, just to be sure, i did a full rebuild and the error came back
no idea why things compiled ok the first time

intripoon · May 22, 2022, 3:22am

I have a temporary solution until 1.2 is supported in a new version of unreal. I posted it yesterday and has not been approved. How long does that take?

PHoriaP · May 22, 2022, 3:27am

For anybody that is unwilling to downgrade anything and lazy to go to all the trouble of manually changing the engine, I’ll share my solution (on Windows):
Open a PowerShell window in your project folder and each time you get the error in VS, just run:

Get-ChildItem “./Intermediate/Build/Win64” -Filter “*.json” -Recurse | ForEach-Object{((Get-Content -path $.FullName -Raw) -replace ‘“Version”: “1.2”’,’“Version”: “1.1”’) | Set-Content -Path $.FullName}

it takes less than a second and is just setting the Version of all .json files to 1.1 instead of 1.2
That’s about it.
Cheers!

G-Bamboo · May 22, 2022, 3:32am

Just install VS2019 and set UE5’s Source Code Editor to VS2019 in Editor Preferences.

LowerDeckBoy · May 22, 2022, 12:36pm

Get-ChildItem “./Intermediate/Build/Win64” -Filter “.json” -Recurse | ForEach-Object{((Get-Content -path $.FullName -Raw) -replace ‘“Version”: “1.2”’,’“Version”: “1.1”’) | Set-Content -Path $*.FullName}

I’ve tried to run it and for some reason it doesn’t work from project folder: $.FullName’ because it does not exist.
Also tried to run it straight from Intermediate/Build/Win64 but somehow it only changes some files and doesn’t edit others.

PHoriaP · May 22, 2022, 1:11pm

It’s just a PowerShell command that goes through all files (recursively through all subfolders) and consideres just the “.json” ones. $ is just the file name, $.FullName is the entire path of the file.
Make sure your PowerShell window points to the correct folder when you run the command - it should be your project root.

I just compile / run the game in VS and when the window with the error appears, I just switch to the opened PowerShell, run the command, switch back to VS and build / run again.

rndSocrates · May 22, 2022, 2:06pm

Seems that none of proposed fixes worked for me (I guess it’s RiderLink disrupts any attempts to fix the issue). I hope that PR will be merged into upcoming 5.0.2 release.
In a meantime rebuild helps, for some reason it works for me.

YuDaeGam · May 23, 2022, 9:12am

Hi, you don’t need to use Powershell command.
just use VSCode replace function like this.

Open VSCode on your project folder.
Search “Version”: “1.2”
Replace All to “Version”: “1.1”
Good Luck!

mrt-prodz · May 23, 2022, 10:53am

I had to change the powershell script like this :

Get-ChildItem "./Intermediate/Build/Win64" -Filter "*.json" -Recurse | ForEach-Object -Process { ((Get-Content -path $_.FullName -Raw) -Replace '"Version": "1.2"','"Version": "1.1"')  | Set-Content -Path $_.FullName}

$.FullName was causing issue on my end and I had to change it to $_.FullName

LowerDeckBoy · May 23, 2022, 12:56pm

Simple change but got the job done.
Thanks.

xTriplex · May 25, 2022, 7:55am

Get-ChildItem "./Plugins/Developer/RiderLink/Intermediate/Build/Win64/UnrealEditor/Development" -Filter "*.json" -Recurse | ForEach-Object -Process { ((Get-Content -path $_.FullName -Raw) -Replace '"Version": "1.2"','"Version": "1.1"') | Set-Content -Path $_.FullName}

Edited the script for Rider. Worked for me

VirtualNK · May 25, 2022, 9:40am

Thanks for this! I’m trying REAL HARD to use Rider for UE5 and every single time something comes up and I’m left with Visual Studio - which is pretty nice of course but I wanted to try Rider (Or the newer VS2022).

_Vagabond · May 25, 2022, 6:04pm

Hey guys, this seems to solve the problem for me.

Just to clarify i’m using UE 5.0.1 and VS 2022 17.2.2 ( just the most recent update ) i tried a ton of things, but just following this procedure i got it working !

So i picked compiler v14.31-17-1 and altered the Build Configuration file as in the second image !

Thanks !

DarkRod · May 25, 2022, 11:16pm

how do that if you can’t make the editor with sources ? lol

G-Bamboo · May 26, 2022, 1:59am

You don’t need to build editor from source code, it’s just a editor preferences property:

Visuallization1 · May 27, 2022, 3:05pm

Hey there!

I fixed this by updating unreal engine to version 5.0.2.

Cheers