java - Error running data generation for fabric 1.21 - Stack Overflow

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I'm working on a Minecraft 1.21 Fabric mod and encountering an error while running DataGen. Initially, I was getting the following error:

Error: Could not find or load main class net.fabricmc.devlaunchinjector.Main

Caused by: java.lang.ClassNotFoundException: net.fabricmc.devlaunchinjector.Main

I thought maybe re-donwloading things would work:

./gradlew clean build

but instead, this led to a new error during the build process, before DataGen even starts:

Error running 'Data Generation' Cannot start process, the working directory 'C:\Users\yahoo\Downloads\my-mod-template-1.21.X\build\datagen' does not exist

build.gradle:

    plugins {
    id 'fabric-loom' version '1.7-SNAPSHOT'
    id 'maven-publish'
}

version = project.mod_version
group = project.maven_group

base {
    archivesName = project.archives_base_name
}

repositories {
    maven { url '/' }
}

dependencies {
    minecraft "com.mojang:minecraft:${project.minecraft_version}"
    mappings "net.fabricmc:yarn:${project.yarn_mappings}:v2"
    modImplementation "net.fabricmc:fabric-loader:${project.loader_version}"
    modImplementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_version}"
}

ext {
    mymod = "mymod" // This defines the property
}

loom {
    runs {
        datagen {
            inherit client
            name "Data Generation"
            vmArg "-Dfabric-api.datagen"
            vmArg "-Dfabric-api.datagen.output-dir=${file("src/main/generated")}"
            vmArg "-Dfabric-api.datagen.modid=${mymod}"
            runDir "build/datagen"
        }
    }
}

processResources {
    duplicatesStrategy(DuplicatesStrategy.EXCLUDE)
    inputs.property "version", project.version

    filesMatching("fabric.mod.json") {
        expand "version": project.version
    }
}

tasks.withType(JavaCompile).configureEach {
    it.options.release = 21
}

java {
    withSourcesJar()
    sourceCompatibility = JavaVersion.VERSION_21
    targetCompatibility = JavaVersion.VERSION_21
}

jar {
    from("LICENSE") {
        rename { "${it}_${project.base.archivesName.get()}"}
        duplicatesStrategy(DuplicatesStrategy.EXCLUDE)
    }
}

publishing {
    publications {
        create("mavenJava", MavenPublication) {
            artifactId = project.archives_base_name
            from components.java
        }
    }
    repositories {
        // Add repositories to publish to here.
    }
}

gradle.properties:

    # Done to increase the memory available to gradle.
.gradle.jvmargs=-Xmx1G
.gradle.parallel=true

# Fabric Properties
# check these on 
minecraft_version=1.21
yarn_mappings=1.21+build.9
loader_version=0.16.3
systemProp.https.protocols = TLSv1.1,TLSv1.2

# Mod Properties
mod_version=1.0.0
maven_group=net.hj.mymod
archives_base_name=mymod

# Dependencies
fabric_version=0.102.0+1.21

settings.gradle:

    pluginManagement {
    repositories {
        maven {
            name = 'Fabric'
            url = '/'
        }
        mavenCentral()
        gradlePluginPortal()
    }
}

If anyone knows how to fix this DataGen error or has any recommendations, please respond. Tnx!

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