Heroic Games Launcher•7mo ago

SyntaxError: Unexpected end of JSON input

Trying to play two point hospital but this error keeps on happening no matter which proton i use.

HeroicBotAPP•6/15/25, 4:00 AM

To help you, we need a game log. Please see the following images on how to get it.

endless-jadeOP•6/15/25, 4:03 AM

the upload failed for the upload log file

endless-jadeOP•6/15/25, 4:05 AM

Launching "Two Point Hospital" (legendary)

Native? No

Installed in: /opt/game/twopointhospital

System Info:

CPU: 12x AMD Ryzen 5 7600 6-Core Processor

Memory: 16.49 GB (used: 2.84 GB)

GPUs:

GPU 0:

Name: NVIDIA Corporation GK104 [GeForce GTX 670]

IDs: D=1189 V=10de SD=3542 SV=1458

Driver: nvidia

OS: Debian GNU/Linux 12 (bookworm) (linux)

The current system is not a Steam Deck

We are not running inside a Flatpak container

Software Versions:

Heroic: 2.17.2 Cutty Flam Franky

Legendary: 0.20.37 Exit 17 (Heroic)

gogdl: 1.1.2

comet: comet 0.2.0

Nile: 1.1.2 Will A. Zeppeli

endless-jadeOP•6/15/25, 4:05 AM

Game Settings: {

"autoInstallDxvkNvapi": true,

"preferSystemLibs": false,

"enableEsync": true,

"enableFsync": true,

"nvidiaPrime": false,

"enviromentOptions": [],

"wrapperOptions": [],

"showFps": false,

"targetExe": "",

"useGameMode": false,

"useSteamRuntime": true,

"battlEyeRuntime": true,

"eacRuntime": true,

"language": "",

"beforeLaunchScriptPath": "",

"afterLaunchScriptPath": "",

"verboseLogs": true,

"advertiseAvxForRosetta": false,

"wineVersion": {

"bin": "/opt/game/dotSteam/debian-installation/steamapps/common/Proton - Experimental/proton",

"name": "Proton - Proton - Experimental",

"type": "proton"

},

"winePrefix": "/home/ewan/Games/Heroic/Prefixes/default/Two Point Hospital"

}

Game launched at: Sun Jun 15 2025 14:01:47 GMT+1000 (Australian Eastern Standard Time)

An exception occurred when launching the game:

SyntaxError: Unexpected end of JSON input

at JSON.parse (<anonymous>)

at vn (/tmp/.mount_HeroicnfhRHc/resources/app.asar/build/main/main.js:145:1410)

at Module.Fd [as launch] (/tmp/.mount_HeroicnfhRHc/resources/app.asar/build/main/main.js:105:7143)

at Zo (/tmp/.mount_HeroicnfhRHc/resources/app.asar/build/main/main.js:143:1914)

at Session.<anonymous> (node:electron/js2c/browser_init:2:106823)

============= End of log =============

endless-jadeOP•6/15/25, 4:06 AM

heres the log

endless-jadeOP•6/15/25, 4:06 AM

the upload wasnt working

moderate-tomato•6/15/25, 4:14 AM

Hmm, might be a bug in Heroic itself. Will have to wait for a dev to take a look.

colossal-harlequin•6/15/25, 4:16 AM

in the meantime, you can swap to proton-ge

colossal-harlequin•6/15/25, 4:17 AM

wait, why is it installed in /opt?

endless-jadeOP•6/15/25, 4:22 AM

cause thats where i installed it

endless-jadeOP•6/15/25, 4:22 AM

ive played games with it installed in there before

colossal-harlequin•6/15/25, 4:23 AM

from heroic?

endless-jadeOP•6/15/25, 4:24 AM

yes

colossal-harlequin•6/15/25, 4:24 AM

okay

awake-maroon•6/15/25, 8:12 PM

check the legendary/epic logs in the logs area, maybe there's more details about the error

endless-jadeOP•6/17/25, 6:31 AM

here are the logs from the epic/legendary

endless-jadeOP•6/17/25, 6:31 AM

[17/06/2025, 4:30:22 pm] LEGENDARY_CONFIG_PATH=/home/ewan/.config/heroic/legendaryConfig/legendary /tmp/.mount_HeroicthhBec/resources/app.asar.unpacked/build/bin/x64/linux/legendary --version

legendary version "0.20.37", codename "Exit 17 (Heroic)"

[17/06/2025, 4:30:26 pm] LEGENDARY_CONFIG_PATH=/home/ewan/.config/heroic/legendaryConfig/legendary /tmp/.mount_HeroicthhBec/resources/app.asar.unpacked/build/bin/x64/linux/legendary list --third-party

[cli] INFO: Logging in...

[Core] INFO: Logging in...

[cli] INFO: Getting game list... (this may take a while)

Available games:

Fortnite (App name: Fortnite | Version: ++Fortnite+Release-36.00-CL-43339403-Windows)
Rocket League® (App name: Sugar | Version: BC2_Update54+483820)
Two Point Hospital (App name: 4ad17ed617f44a4dbf7e8a960484c619 | Version: 1.3)
VALORANT (App name: 602eb4abc8764c87b7f2607a1ef8c18e | Version: 2609-591)

Total: 4

[17/06/2025, 4:30:30 pm] LEGENDARY_CONFIG_PATH=/home/ewan/.config/heroic/legendaryConfig/legendary /tmp/.mount_HeroicthhBec/resources/app.asar.unpacked/build/bin/x64/linux/legendary list --third-party

[cli] INFO: Logging in...

[Core] INFO: Trying to re-use existing login session...

[cli] INFO: Getting game list... (this may take a while)

Available games:

Fortnite (App name: Fortnite | Version: ++Fortnite+Release-36.00-CL-43339403-Windows)
Rocket League® (App name: Sugar | Version: BC2_Update54+483820)
Two Point Hospital (App name: 4ad17ed617f44a4dbf7e8a960484c619 | Version: 1.3)
VALORANT (App name: 602eb4abc8764c87b7f2607a1ef8c18e | Version: 2609-591)

Total: 4

awake-maroon•6/17/25, 12:06 PM

it looks like you shared an epic/legendary log without trying to run the game first, it's just listing your games and there's no attempt to run two point hospital

endless-jadeOP•6/19/25, 9:53 AM

message.txt8.05KB

endless-jadeOP•6/19/25, 9:54 AM

i ran the game and took these logs for the epic/legendary

awake-maroon•6/19/25, 8:42 PM

one question, is there a file called installed_gamesinstalled_games in the /home/ewan/Games/Heroic/Prefixes/default/Two Point Hospital/home/ewan/Games/Heroic/Prefixes/default/Two Point Hospital folder?

awake-maroon•6/19/25, 8:42 PM

if so, try renaming it to something else

awake-maroon•6/19/25, 8:45 PM

if it works after that, can you share the content of the file here to see what's wrong inside it?

endless-jadeOP•6/20/25, 7:44 AM

i renamed it and it still didnt work

awake-maroon•6/20/25, 1:14 PM

is it still the exact same error as before? can you share that file?

because the original error points to the part of the code where we read that file

SyntaxError: Unexpected end of JSON input

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