Common Issues FAQ - ImpactDevelopment/ImpactIssues GitHub Wiki

Common crashes or errors, either setup issues by the user or known bugs. This is mostly a reference for Github issues. Please feel free to add more.

Starting nightly with wrong user account

The resulting crash is a java memory error (hs_err_pid). In the latest.log there should be:

Error getting Impact API token from minecraft login
java.io.IOException: /login/minecraft is not ok, it's 401

My game freezes on a dirt screen when I join

This is caused by ESP's shader mode not getting along with Optifine shaders. Either disable Optifine shaders, disable ESP, or change ESP's mode to something other than shader.

My game crashes and my language is NOT English

Set your language to English. A reported solution is adding -Duser.language=en -Duser.country=US to your JVM arguments. This is caused by mixin

My game crashes with exit code 0!

Downgrade your Java OpenJDK Modules! Impact is buggy on OpenJDK 11 and 14. So it's necessary to downgrade to Java OpenJDK 8.

Ubuntu/Debian 9 and older:

sudo apt remove openjdk-11

sudo apt install openjdk-8

Debian 10 and newer:

wget -qO - https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public | sudo apt-key add -

sudo add-apt-repository --yes https://adoptopenjdk.jfrog.io/adoptopenjdk/deb/

sudo apt-get update && sudo apt-get install adoptopenjdk-8-hotspot

sudo apt remove openjdk-11

Arch:

sudo pacman -R jre11-openjdk

sudo pacman -S jre8-openjdk

CentOS/Fedora:

sudo yum remove java-1.11.0-openjdk

sudo yum install java-1.8.0-openjdk

Windows 10:

Here's a good guide to follow!)