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Posted

when i try to install forge this appears  downloading minecraft client failed, invalid chekcsum try again, or use the vanilla launcher to install the vanilla version

Posted

Please provide your installer log, it will have the same name as the installer but with .log on the end:

Installer: forge-{version}-installer.jar

Log: forge-{version}-installer.jar.log

 

Note: If you have Windows Explorer set to hide file extensions(as is the default setting), they will look like this:

Installer: forge-{version}-installer

Log: forge-{version}-installer.jar

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.

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Posted
  On 7/28/2019 at 3:40 AM, DaemonUmbra said:

installer.log

 

 

JVM info: Oracle Corporation - 1.8.0_221 - 25.221-b11
java.net.preferIPv4Stack=true
Extracting json
Extracting json
Considering minecraft client jar
Considering minecraft client jar
  Downloading library from https://launcher.mojang.com/v1/objects/8c325a0c5bd674dd747d6ebaa4c791fd363ad8a9/client.jar
java.net.SocketTimeoutException: Read timed out
    at java.net.SocketInputStream.socketRead0(Native Method)
    at java.net.SocketInputStream.socketRead(Unknown Source)
    at java.net.SocketInputStream.read(Unknown Source)
    at java.net.SocketInputStream.read(Unknown Source)
    at sun.security.ssl.InputRecord.readFully(Unknown Source)
    at sun.security.ssl.InputRecord.readV3Record(Unknown Source)
    at sun.security.ssl.InputRecord.read(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source)
    at sun.security.ssl.AppInputStream.read(Unknown Source)
    at java.io.BufferedInputStream.read1(Unknown Source)
    at java.io.BufferedInputStream.read(Unknown Source)
    at sun.net.www.MeteredStream.read(Unknown Source)
    at java.io.FilterInputStream.read(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(Unknown Source)
    at java.nio.file.Files.copy(Unknown Source)
    at java.nio.file.Files.copy(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:146)
    at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:138)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:99)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:166)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:139)
Downloading minecraft client failed, invalid checksum.
Try again, or use the vanilla launcher to install the vanilla version.
Downloading minecraft client failed, invalid checksum.
Try again, or use the vanilla launcher to install the vanilla version.
 

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installer.logFetching info...

Posted
  On 7/28/2019 at 7:49 PM, pachos said:

i know what a firewall is, i mean what can i do in that part

Expand  

Search up how to disable firewall on your specific router/device.

Some tips:

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