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Error: Could not find or load main class net.minecraftforge.userdev.LaunchTesting

Posted May 6, 20205 yr

this keeps coming up wen I try to runClient 1.15.2 build

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Error: Could not find or load main class net.minecraftforge.userdev.LaunchTesting

ACtC-3eARdNZlXu5RUHwitNmj1G1vjbwvtPOXWh1

Edited May 6, 20205 yr by derekrneilson

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May 6, 20205 yr

Author

11 hours ago, diesieben07 said:

Change your mod ID. Not only is it invalid (must be all lowercase), it also bad. If your mod is called "Terrain Mod 2020" then your mod ID should be "terrainmod2020" or "terrain_mod_2020". Do not abbreviate.

I did this but to no avail

11 hours ago, diesieben07 said:

please follow Java package naming conventions.

I am now following Java package naming conventions and still didn't work but thanks for the suggestions

you can find my mod so far here

Edited May 6, 20205 yr by derekrneilson

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May 6, 20205 yr

Author

I tried runClient in console the gradle scan can be found here

Edited May 7, 20205 yr by derekrneilson
updated info

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May 6, 20205 yr

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Java runtime

Oracle Java(TM) SE Runtime Environment 13.0.2+8

Use Java 8

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May 7, 20205 yr

Author

4 hours ago, Ugdhar said:

Use Java 8

I am now using java 8 but I am not seeing any direct difference but I updated the gradle scan

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May 7, 20205 yr

In you mods.toml file, right after your modid:

[[mods]] #mandatory
modId="terainmod2020" mandatory   <----------
version="1.15.2-1.0.0" #mandatory

You missed a "#", it should be

#mandatory

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May 7, 20205 yr

Author

16 hours ago, poopoodice said:
In you mods.toml file, right after your modid:
[[mods]] #mandatory
modId="terainmod2020" mandatory   <----------
version="1.15.2-1.0.0" #mandatory
You missed a "#", it should be
#mandatory

thanks for finding that but it keeps crashing

Edited May 7, 20205 yr by derekrneilson

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May 7, 20205 yr

Show a new log please

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May 7, 20205 yr

Author

the new log can be found here

Edited May 7, 20205 yr by derekrneilson

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May 7, 20205 yr

Author

2 hours ago, diesieben07 said:

Update Forge.

okay so I updated forge and I am still having the same err.

I have 8Gs of ram why dose it not aloe me to alot all 8Gs if I try it says

org.gradle.jvmargs=-Xmx8G

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Unable to start the daemon process.
This problem might be caused by incorrect configuration of the daemon.
For example, an unrecognized jvm option is used.
Please refer to the user guide chapter on the daemon at https://docs.gradle.org/4.9/userguide/gradle_daemon.html
Please read the following process output to find out more:
-----------------------
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Invalid maximum heap size: -Xmx8G
The specified size exceeds the maximum representable size.

-----------------------
Check the JVM arguments defined for the gradle process in:
- gradle.properties in project root directory

Edited May 7, 20205 yr by derekrneilson

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May 7, 20205 yr

How much RAM do you have in your computer?

8G might be too much. 4-6G is enough.

Some tips:

Spoiler

Modder Support:

Spoiler

1. Do not follow tutorials on YouTube, especially TechnoVision (previously called Loremaster) and HarryTalks, due to their promotion of bad practice and usage of outdated code.

2. Always post your code.

3. Never copy and paste code. You won't learn anything from doing that.

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Programming via Eclipse's hotfixes will get you nowhere

5. Learn to use your IDE, especially the debugger.

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The "picture that's worth 1000 words" only works if there's an obvious problem or a freehand red circle around it.

Support & Bug Reports:

Spoiler

1. Read the EAQ before asking for help. Remember to provide the appropriate log(s).

2. Versions below 1.11 are no longer supported due to their age. Update to a modern version of Minecraft to receive support.

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7 months later...

December 25, 20204 yr

Same Error for free Is there Any help/Fix??

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4 months later...

May 3, 20214 yr

If anyone is still having problems with this, use Java 8 not just for coding, but also for gradlew genEclipseRuns/genVSCodeRuns/genIntellijRuns.

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Error: Could not find or load main class net.minecraftforge.userdev.LaunchTesting

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