Complete noob question

[zdlugasz]

My daughter will attend programming class with Minecraft LUA. Since she missed first two classes  I wanted to show her how things look like.

I got instructions from organizers and installed Minecraft and latest Forge (as asked by organizers). However, before installing mod instruction required me to start minecraft and then close it.

When I did so I got exception "Missing required option(s) ['userProperties']".

Is it caused by using demo version or something else?

Thanks

 

Excerpt from log

 

Preparing to launch minecraft client for 1.7.10-Forge10.13.4.1614-1.7.10

many Couldn't fetch SHA1 checksums

Checking installations.
Minecraft client 1.7.10-Forge10.13.4.1614-1.7.10 is ready to start.
Starting!
Using default game log configuration client-1.7.xml (outputs XML)
Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
Forge Mod Loader version 7.99.40.1614 for Minecraft 1.7.10 loading
Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_51, running on Windows 10:amd64:10.0, installed at C:\Program Files (x86)\Minecraft Launcher\runtime\jre-x64

Launching wrapped minecraft {net.minecraft.client.main.Main}
Unable to launch
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: joptsimple.MissingRequiredOptionException: Missing required option(s) ['userProperties']
    at joptsimple.OptionParser.ensureRequiredOptions(OptionParser.java:447)
    at joptsimple.OptionParser.parse(OptionParser.java:437)
    at net.minecraft.client.main.Main.main(SourceFile:83)
    ... 6 more
[java.lang.Throwable$WrappedPrintStream:println:748]: cpw.mods.fml.relauncher.FMLSecurityManager$ExitTrappedException
[java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:25)

 

Edit: version 1.7.10 was recommended by organizer (as they use it during classes) and mod I should install is for 1.7.10 as well

Edited October 25, 2020 by zdlugasz

[DaemonUmbra]

We don't support 1.7 anymore because it's ancient (6 years 5 months old). Sorry.

Ask the organizers how to fix this and tell them we recommend updating to modern versions.

[zdlugasz]

Thanks for answer. It looks like the mod they are using was not updated for forge > 1.8. 

[DaemonUmbra]

If you are referring to ComputerCraft, the original has been retired but CC:Tweaked is a modern fork of it.

However if you're talking about schools then unfortunately they may also be using ComputerCraftEdu, which hasn't been updated.