I am a new developer. After building.gradle according to the problems of Wiki and other developers, I found that it reported errors. Is it my copy error or other reasons

Caused by: org.gradle.internal.resolve.ModuleVersionNotFoundException: Could not find mezz.jei:jei-1.12.2:4.16.1.302.

Could not find mezz.jei:jei-1.12.2:4.16.1.302_mapped_stable_39-1.12.
Required by:
project :

Could not find mezz.jei:jei-1.12.2:4.16.1.302_mapped_stable_39-1.12.
Searched in the following locations:

• file:/C:/Users/Sky_Ice_/.gradle/caches/forge_gradle/bundeled_repo/mezz/jei/jei-1.12.2/4.16.1.302_mapped_stable_39-1.12/jei-1.12.2-4.16.1.302_mapped_stable_39-1.12.pom
• file:/C:/Users/Sky_Ice_/.gradle/caches/forge_gradle/bundeled_repo/mezz/jei/jei-1.12.2/4.16.1.302_mapped_stable_39-1.12/jei-1.12.2-4.16.1.302_mapped_stable_39-1.12-api.jar
  Required by:
  project :

This is my build.gradle

buildscript {
repositories {
maven { url = 'https://maven.minecraftforge.net' }
mavenCentral()
maven {
// location of the maven that hosts JEI files
name = "Progwml6 maven"
url = "https://dvs1.progwml6.com/files/maven/"
}
maven {
// location of a maven mirror for JEI files, as a fallback
name = "ModMaven"
url = "https://modmaven.k-4u.nl"
}
}
dependencies {
classpath group: 'net.minecraftforge.gradle', name: 'ForgeGradle', version: '4.1.+', changing: true
}
}

apply plugin: 'net.minecraftforge.gradle'

group = 'Mind'
version = '0.0.1'
archivesBaseName = 'mind'

java.toolchain.languageVersion = JavaLanguageVersion.of(8) // Mojang ships Java 8 to end users, so your mod should target Java 8.

minecraft {
// The mappings can be changed at any time, and must be in the following format.
// Channel: Version:
// snapshot YYYYMMDD Snapshot are built nightly.
// stable # Stables are built at the discretion of the MCP team.
// official MCVersion Official field/method names from Mojang mapping files
//
// You must be aware of the Mojang license when using the 'official' mappings.
// See more information here: https://github.com/MinecraftForge/MCPConfig/blob/master/Mojang.md
//
// Use non-default mappings at your own risk. they may not always work.
// Simply re-run your setup task after changing the mappings to update your workspace.
mappings channel: 'stable', version: '39-1.12'
// makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.

// accessTransformer = file('src/main/resources/META-INF/accesstransformer.cfg')

// Default run configurations.
// These can be tweaked, removed, or duplicated as needed.
runs {
    client {
        workingDirectory project.file('run')

        // Recommended logging data for a userdev environment
        // The markers can be changed as needed.
        // "SCAN": For mods scan.
        // "REGISTRIES": For firing of registry events.
        // "REGISTRYDUMP": For getting the contents of all registries.
        property 'forge.logging.markers', 'REGISTRIES'

        // Recommended logging level for the console
        // You can set various levels here.
        // Please read: https://stackoverflow.com/questions/2031163/when-to-use-the-different-log-levels
        property 'forge.logging.console.level', 'debug'

        mods {
            mind {
                source sourceSets.main
            }
        }
    }

    server {
        workingDirectory project.file('run')

        // Recommended logging data for a userdev environment
        // The markers can be changed as needed.
        // "SCAN": For mods scan.
        // "REGISTRIES": For firing of registry events.
        // "REGISTRYDUMP": For getting the contents of all registries.
        property 'forge.logging.markers', 'REGISTRIES'

        // Recommended logging level for the console
        // You can set various levels here.
        // Please read: https://stackoverflow.com/questions/2031163/when-to-use-the-different-log-levels
        property 'forge.logging.console.level', 'debug'

        mods {
            mind {
                source sourceSets.main
            }
        }
    }
}

}

// Include resources generated by data generators.
sourceSets.main.resources { srcDir 'src/generated/resources' }

dependencies {
// Specify the version of Minecraft to use, If this is any group other then 'net.minecraft' it is assumed
// that the dep is a ForgeGradle 'patcher' dependency. And it's patches will be applied.
// The userdev artifact is a special name and will get all sorts of transformations applied to it.
minecraft 'net.minecraftforge:forge:1.12.2-14.23.5.2855'

// compile against the JEI API but do not include it at runtime
compileOnly fg.deobf("mezz.jei:jei-${mc_version}:${jei_version}:api")
// at runtime, use the full JEI jar
runtimeOnly fg.deobf("mezz.jei:jei-${mc_version}:${jei_version}")

}

// Example for how to get properties into the manifest for reading by the runtime..
jar {
manifest {
attributes([
"Specification-Title" : "mind",
//"Specification-Vendor": "mind authors",
"Specification-Version" : "1", // We are version 1 of ourselves
"Implementation-Title" : project.name,
"Implementation-Version" : project.version,
//"Implementation-Vendor": "mind authors",
"Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ")
])
}
}

jar.finalizedBy('reobfJar')

change the dash to an underscore

You have

compileOnly fg.deobf("mezz.jei:jei-${mc_version}:${jei_version}:api")
runtimeOnly fg.deobf("mezz.jei:jei-${mc_version}:${jei_version}")

but need to use an underscore not a dash. the setup instructions for 1.12 are documented in the wiki here: https://github.com/mezz/JustEnoughItems/wiki/Getting-Started

deobfProvided "mezz.jei:jei_${mc_version}:${jei_version}:api"
runtime "mezz.jei:jei_${mc_version}:${jei_version}"