"Unable to retrieve Instrumentation API to add Paper jar to classpath. If you're running paperclip without -jar then you also need to include the -javaagent:<paperclip_jar> JVM command line option."

[cobaltgit]

I'm trying to run Yatopia through the ServerJars updater and then it shows this error "Unable to retrieve Instrumentation API to add Paper jar to classpath. If you're running paperclip without -jar then you also need to include the -javaagent: JVM command line option."

Here's the output of java -version:

openjdk version "11.0.9.1" 2020-11-04
OpenJDK Runtime Environment (build 11.0.9.1+1-post-Raspbian-1deb10u2)
OpenJDK Server VM (build 11.0.9.1+1-post-Raspbian-1deb10u2, mixed mode)

My JVM flags are as follows:

/usr/bin/java -server -Xms2G -Xmx2G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true -jar serverjars-2.jar nogui

I'm running this on a Raspberry Pi 4 4GB model, is it anything to do with the architecture? If not then how can I resolve the issue?

[cobaltgit]

Full output of the server start command is as follows:

   _____                               __
  / ___/___  ______   _____  _____    / /___ ___________
  \__ \/ _ \/ ___/ | / / _ \/ ___/_  / / __ `/ ___/ ___/
 ___/ /  __/ /   | |/ /  __/ /  / /_/ / /_/ / /  (__  )
/____/\___/_/    |___/\___/_/   \____/\__,_/_/  /____/
ServerJars.com           Made with love by Songoda <3

ServerJars is starting...

The jar is up to date.

Launching yatopia-1.16.5.jar...
................................

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.songoda.serverjars.ServerJars (file:/home/pi/minecraft/serverjars-2.jar) to method java.net.URLClassLoader.addURL(java.net.URL)
WARNING: Please consider reporting this to the maintainers of com.songoda.serverjars.ServerJars
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

===========================

Notice: Java has warned you that you are using a workaround if you want to get around this you can add the following arguments: '-Djava.system.class.loader=com.serverjars.updater.ServerJarsLoader'
e.g 'java -Djava.system.class.loader=com.serverjars.updater.ServerJarsLoader -jar serverjars.jar
'Unable to retrieve Instrumentation API to add Paper jar to classpath. If you're running paperclip without -jar then you also need to include the -javaagent:<paperclip_jar> JVM command line option.