Can't run a packaged game ("RocketGame requires a project file as the first parameter")

Development Platform & Builds
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1

I am trying to package a game and run outside of the editor.

Steps taken:

  1. Launch Rocket editor (beta 6)
  2. Create a new project using the “BP FPS template”
  3. Select File->Package Project->Windows
  4. Select the output folder.

The packaging results in a directory structure seen here: http://pastebin.com/gzkqGApK

Whenever i try running the built .EXE (under Engine/Binaries/Win32) i get the following message:

“RocketGame requires a project file as the first parameter”

Is this a bug? why isn’t it working correctly?

2

Hi Lior. You need to create a shortcut or batch file as Rama suggests, but it needs a relative path to the uproject file to be appended to the command line:

RocketGame.exe ../../../BP_FPS/BP_FPS.uproject

The next beta won’t require this step, but the change just missed the Beta 6 deadline.

3

The .uproject file is something that gets distributed to the players of the game ?

4

Yes, but it’s stored inside the PAK file. The PAK file is a self-contained filesystem that the engine mounts on startup, and will be mapped onto ‘…/…/…/BP_FPS’.

The .uproject file is stored inside it (hence the path above), so it’s visible to the engine but not directly visible to players of your game.

5

Thanks. Is this documented somewhere? i didn’t read about it anywhere… (and i’m reading the documentation one page at a time :slight_smile: )

6

see my answer below

7

Actually this link https:/ /rocket.unrealengine.com/docs/ue4/INT/GettingStarted/Basics/Projects/Packaging/index.html

says you need to go 4 folders up (…/…/…/…/) but the correct number is 3

I think it should be fixed at least until the next beta is out (since it fixes the need for doing this anyway)

8

Thanks for pointing that out. I’ll enter a request to get that fixed.

9

Dear Lior,

You must create a shortcut out of your .exe file

and add -PAK to the end of the shortcut

I personally use a .bat file

into empty text file that you name with .bat extension you can write something like this

cd YourRootDir\YourGame\Binaries\Win64
YourGame.exe -pak -log -nosteam

If this answers your question please mark the checkmark by my answer so others know it has been answered fully

10

That didn’t work.

11

#Documentation

https://rocket.unrealengine.com/docs/ue4/INT/GettingStarted/Basics/Projects/Packaging/index.html