An error occurred on my pc when I am installing the forge. I need help.

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'forge-1.16.5-36.1.0-mdk1'.
> Could not resolve all artifacts for configuration ':classpath'.
   > Could not resolve net.minecraftforge.gradle:ForgeGradle:4.1.+.
     Required by:
         project :
      > Failed to list versions for net.minecraftforge.gradle:ForgeGradle.
         > Unable to load Maven meta-data from https://files.minecraftforge.net/maven/net/minecraftforge/gradle/ForgeGradle/maven-metadata.xml.
            > Could not get resource 'https://files.minecraftforge.net/maven/net/minecraftforge/gradle/ForgeGradle/maven-metadata.xml'.
               > Could not GET 'https://files.minecraftforge.net/maven/net/minecraftforge/gradle/ForgeGradle/maven-metadata.xml'.
                  > The server may not support the client's requested TLS protocol versions: (TLSv1.2). You may need to configure the client to allow other protocols to be used. See: https://docs.gradle.org/6.8.1/userguide/build_environment.html#gradle_system_properties
                     > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

 

And this is info:

> Configure project :
Evaluating root project 'forge-1.16.5-36.1.0-mdk1' using build file 'D:\Gradle\forge-1.16.5-36.1.0-mdk1\build.gradle'.
Resource missing. [HTTP GET: https://repo.maven.apache.org/maven2/net/minecraftforge/gradle/ForgeGradle/maven-metadata.xml]

FAILURE: Build failed with an exception.

Now my java  is the latest version,java8 291.But other errors occurred:

A problem occurred configuring root project 'forge-1.16.5-36.1.32-mdk '.
> Could not resolve all artifacts for configuration ':classpath'.
   > Could not download fastutil-8.3.1.jar (it.unimi.dsi:fastutil:8.3.1)
      > Could not get resource 'https://maven.minecraftforge.net/it/unimi/dsi/fastutil/8.3.1/fastutil-8.3.1.jar'.
         > Could not GET 'https://maven.minecraftforge.net/it/unimi/dsi/fastutil/8.3.1/fastutil-8.3.1.jar'.
            > maven.minecraftforge.net

Change version to recommended version 1.16.5-36.1.0:

A problem occurred configuring root project 'forge-1.16.5-36.1.0-mdk'.
> Could not resolve all files for configuration ':_compileJava_1'.
   > Could not download icu4j-66.1.jar (com.ibm.icu:icu4j:66.1)
      > Could not get resource 'https://maven.minecraftforge.net/com/ibm/icu/icu4j/66.1/icu4j-66.1.jar'.
         > Premature end of Content-Length delimited message body (expected: 12,935,630; received: 6,042,560)
   > Could not download fastutil-8.2.1.jar (it.unimi.dsi:fastutil:8.2.1)
      > Could not get resource 'https://maven.minecraftforge.net/it/unimi/dsi/fastutil/8.2.1/fastutil-8.2.1.jar'.
         > Premature end of Content-Length delimited message body (expected: 18,800,417; received: 7,013,368)

umm...I see

I got it!Thanks!

I believe i am having the same issue with the internet, how exactly did you solve it