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Posted (edited)

I used the forge installer for 1.17.1 and no matter what i tried or did I kept encountering the same problem, whenever tried to run the installer it was unable to download the libraries  due to this error.

Ps. I am using java version 16.02 and running windows 10

javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target.

Now I am quite sure I am just being quite stupid here but no matter where I looked I could not find a solution that i understood how to do, so can someone please help me find what the problem is and how to fix it?

I am unsure how to post the log files here but all it says is basically that it cannot download the libraries due to that error I pasted up there.

Thank you.

Edited by TechNoob
forgot to include OS
Posted
  On 9/10/2021 at 11:23 PM, TechNoob said:

I used the forge installer for 1.17.1 and no matter what i tried or did I kept encountering the same problem, whenever tried to run the installer it was unable to download the libraries  due to this error.

Ps. I am using java version 16.02 and running windows 10

javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target.

Now I am quite sure I am just being quite stupid here but no matter where I looked I could not find a solution that i understood how to do, so can someone please help me find what the problem is and how to fix it?

I am unsure how to post the log files here but all it says is basically that it cannot download the libraries due to that error I pasted up there.

Thank you.

Expand  

I just tried to reinstall java and it did not work, so i tried going back to java 8 301 and it still did not work, and even after trying different versions of forge the exact same error occurred. Thanks for trying to help though.

 

Posted

Try uninstalling Java completely before reinstalling, and I mean uninstall every version of Java

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

  Reveal hidden contents

 

Posted

I uninstalled every version of java completely, and then made sure to reinstall java 16.02 again correctly but the exact same error occured.

javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target.

I don't think it is a problem with my java installation but if so im not sure what it might be.

 

Posted

The problem is with your java install.
The issue is that it does not contain the LetsEncrypt root ceritificate.
{Or else you have a MUCH larger issue where you have someone intercepting your network traffic}
Be sure you're running the version of java you think you are running by manually running it with the full path from the command line.

I do Forge for free, however the servers to run it arn't free, so anything is appreciated.
Consider supporting the team on Patreon

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