JVM info: Eclipse Adoptium - 21.0.4 - 21.0.4+7-LTS java.net.preferIPv4Stack=true Current Time: 07/04/2026 19:39:35 Host: files.minecraftforge.net [172.67.161.211, 104.21.58.163] Host: maven.minecraftforge.net [104.21.58.163, 172.67.161.211] Host: libraries.minecraft.net [150.171.109.101] Host: launchermeta.mojang.com [150.171.109.101] Host: piston-meta.mojang.com [150.171.109.100] Host: sessionserver.mojang.com [150.171.110.138] Host: authserver.mojang.com [Unknown] Data kindly mirrored by CreeperHost at https://www.creeperhost.net/ Extracting json Considering minecraft client jar Downloading libraries Found 0 additional library directories Considering library net.minecraftforge:forge:1.21.1-52.1.0:universal File exists: Checksum validated. Considering library net.minecraftforge:forge:1.21.1-52.1.0:client Invalid library, missing url Considering library net.minecraftforge:JarJarFileSystems:0.3.26 File exists: Checksum validated. Considering library com.google.guava:guava:32.1.2-jre File exists: Checksum validated. Considering library com.google.guava:failureaccess:1.0.1 File exists: Checksum validated. Considering library net.minecraftforge:securemodules:2.2.21 File exists: Checksum validated. Considering library net.minecraftforge:unsafe:0.9.2 File exists: Checksum validated. Considering library org.ow2.asm:asm:9.7.1 File exists: Checksum validated. Considering library org.ow2.asm:asm-tree:9.7.1 File exists: Checksum validated. Considering library org.ow2.asm:asm-util:9.7.1 File exists: Checksum validated. Considering library org.ow2.asm:asm-commons:9.7.1 File exists: Checksum validated. Considering library org.ow2.asm:asm-analysis:9.7.1 File exists: Checksum validated. Considering library de.oceanlabs.mcp:mcp_config:1.21.1-20240808.132146:srg2off File exists: Checksum validated. Considering library net.minecraftforge:JarJarFileSystems:0.3.26 File exists: Checksum validated. Considering library com.google.guava:guava:32.1.2-jre File exists: Checksum validated. Considering library com.google.guava:failureaccess:1.0.1 File exists: Checksum validated. Considering library net.minecraftforge:securemodules:2.2.21 File exists: Checksum validated. Considering library net.minecraftforge:unsafe:0.9.2 File exists: Checksum validated. Considering library org.ow2.asm:asm:9.7.1 File exists: Checksum validated. Considering library org.ow2.asm:asm-tree:9.7.1 File exists: Checksum validated. Considering library org.ow2.asm:asm-util:9.7.1 File exists: Checksum validated. Considering library org.ow2.asm:asm-commons:9.7.1 File exists: Checksum validated. Considering library org.ow2.asm:asm-analysis:9.7.1 File exists: Checksum validated. Considering library net.minecraftforge:bootstrap:2.1.8 File exists: Checksum validated. Considering library net.minecraftforge:bootstrap-api:2.1.8 File exists: Checksum validated. Considering library net.minecraftforge:accesstransformers:8.2.2 File exists: Checksum validated. Considering library net.minecraftforge:eventbus:6.2.27 File exists: Checksum validated. Considering library net.jodah:typetools:0.6.3 File exists: Checksum validated. Considering library net.minecraftforge:forgespi:7.1.5 File exists: Checksum validated. Considering library net.minecraftforge:coremods:5.2.6 File exists: Checksum validated. Considering library org.openjdk.nashorn:nashorn-core:15.4 File exists: Checksum validated. Considering library net.minecraftforge:modlauncher:10.2.4 File exists: Checksum validated. Considering library net.minecraftforge:mergetool-api:1.0 File exists: Checksum validated. Considering library com.electronwill.night-config:toml:3.7.4 File exists: Checksum validated. Considering library com.electronwill.night-config:core:3.7.4 File exists: Checksum validated. Considering library org.apache.maven:maven-artifact:3.8.8 File exists: Checksum validated. Considering library net.minecrell:terminalconsoleappender:1.2.0 File exists: Checksum validated. Considering library org.jline:jline-reader:3.25.1 File exists: Checksum validated. Considering library org.jline:jline-terminal:3.25.1 File exists: Checksum validated. Considering library org.jline:jline-terminal-jna:3.25.1 File exists: Checksum validated. Considering library org.spongepowered:mixin:0.8.7 File exists: Checksum validated. Considering library net.minecraftforge:JarJarSelector:0.3.26 File exists: Checksum validated. Considering library net.minecraftforge:JarJarMetadata:0.3.26 File exists: Checksum validated. Considering library net.minecraftforge:fmlcore:1.21.1-52.1.0 File exists: Checksum validated. Considering library net.minecraftforge:fmlloader:1.21.1-52.1.0 File exists: Checksum validated. Considering library net.minecraftforge:fmlearlydisplay:1.21.1-52.1.0 File exists: Checksum validated. Considering library net.minecraftforge:javafmllanguage:1.21.1-52.1.0 File exists: Checksum validated. Considering library net.minecraftforge:lowcodelanguage:1.21.1-52.1.0 File exists: Checksum validated. Considering library net.minecraftforge:mclanguage:1.21.1-52.1.0 File exists: Checksum validated. Considering library com.github.jponge:lzma-java:1.3 File exists: Checksum validated. Considering library com.google.code.gson:gson:2.10.1 File exists: Checksum validated. Considering library com.nothome:javaxdelta:2.0.1 File exists: Checksum validated. Considering library de.oceanlabs.mcp:mcp_config:1.21.1-20240808.132146@zip File exists: Checksum validated. Considering library de.siegmar:fastcsv:2.2.2 File exists: Checksum validated. Considering library net.minecraftforge:ForgeAutoRenamingTool:1.0.6 File exists: Checksum validated. Considering library net.minecraftforge:binarypatcher:1.2.0 File exists: Checksum validated. Considering library net.minecraftforge:forge:1.21.1-52.1.0:shim File exists: Checksum validated. Considering library net.minecraftforge:forge:1.21.1-52.1.0:universal File exists: Checksum validated. Considering library net.minecraftforge:installertools:1.4.3 File exists: Checksum validated. Considering library net.minecraftforge:srgutils:0.5.1 File exists: Checksum validated. Considering library net.minecraftforge:srgutils:0.5.10 File exists: Checksum validated. Considering library net.minecraftforge:srgutils:0.5.6 File exists: Checksum validated. Considering library net.sf.jopt-simple:jopt-simple:6.0-alpha-3 File exists: Checksum validated. Considering library org.ow2.asm:asm-commons:9.5 File exists: Checksum validated. Considering library org.ow2.asm:asm-commons:9.7 File exists: Checksum validated. Considering library org.ow2.asm:asm-tree:9.5 File exists: Checksum validated. Considering library org.ow2.asm:asm-tree:9.7 File exists: Checksum validated. Considering library org.ow2.asm:asm:9.5 File exists: Checksum validated. Considering library org.ow2.asm:asm:9.7 File exists: Checksum validated. Considering library trove:trove:1.0.2 File exists: Checksum validated. Created Temporary Directory: C:\Users\User\AppData\Local\Temp\forge_installer4691727390717749022 Extracting: /data/client.lzma Building Processors =============================================================================== Cache: C:\Users\User\curseforge\minecraft\Install\libraries\net\minecraft\client\1.21.1\client-1.21.1-mappings.tsrg Missing MainClass: net.minecraftforge.installertools.ConsoleTool Classpath: C:\Users\User\curseforge\minecraft\Install\libraries\net\minecraftforge\installertools\1.4.3\installertools-1.4.3.jar C:\Users\User\curseforge\minecraft\Install\libraries\net\sf\jopt-simple\jopt-simple\6.0-alpha-3\jopt-simple-6.0-alpha-3.jar C:\Users\User\curseforge\minecraft\Install\libraries\com\google\code\gson\gson\2.10.1\gson-2.10.1.jar C:\Users\User\curseforge\minecraft\Install\libraries\de\siegmar\fastcsv\2.2.2\fastcsv-2.2.2.jar C:\Users\User\curseforge\minecraft\Install\libraries\net\minecraftforge\srgutils\0.5.10\srgutils-0.5.10.jar C:\Users\User\curseforge\minecraft\Install\libraries\org\ow2\asm\asm-commons\9.7\asm-commons-9.7.jar C:\Users\User\curseforge\minecraft\Install\libraries\org\ow2\asm\asm-tree\9.7\asm-tree-9.7.jar C:\Users\User\curseforge\minecraft\Install\libraries\org\ow2\asm\asm\9.7\asm-9.7.jar Args: --task, DOWNLOAD_MOJMAPS, --sanitize, --version, 1.21.1, --side, client, --output, C:\Users\User\curseforge\minecraft\Install\libraries\net\minecraft\client\1.21.1\client-1.21.1-mappings.tsrg Task: DOWNLOAD_MOJMAPS MC Version: 1.21.1 Side: client Output: C:\Users\User\curseforge\minecraft\Install\libraries\net\minecraft\client\1.21.1\client-1.21.1-mappings.tsrg Sanitize: true Format: TSRG Skip: false java.net.ConnectException: Connection timed out: connect at java.base/sun.nio.ch.Net.connect0(Native Method) at java.base/sun.nio.ch.Net.connect(Unknown Source) at java.base/sun.nio.ch.Net.connect(Unknown Source) at java.base/sun.nio.ch.NioSocketImpl.connect(Unknown Source) at java.base/java.net.SocksSocketImpl.connect(Unknown Source) at java.base/java.net.Socket.connect(Unknown Source) at java.base/sun.security.ssl.SSLSocketImpl.connect(Unknown Source) at java.base/sun.security.ssl.BaseSSLSocketImpl.connect(Unknown Source) at java.base/sun.net.NetworkClient.doConnect(Unknown Source) at java.base/sun.net.www.http.HttpClient.openServer(Unknown Source) at java.base/sun.net.www.http.HttpClient.openServer(Unknown Source) at java.base/sun.net.www.protocol.https.HttpsClient.(Unknown Source) at java.base/sun.net.www.protocol.https.HttpsClient.New(Unknown Source) at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source) at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source) at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source) at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source) at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source) at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) at java.base/java.net.URL.openStream(Unknown Source) at net.minecraftforge.installertools.DownloadMojmaps.process(DownloadMojmaps.java:82) at net.minecraftforge.installertools.ConsoleTool.main(ConsoleTool.java:41) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at net.minecraftforge.installer.actions.PostProcessors.process(PostProcessors.java:219) at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:78) at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:271) at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:202) at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:155) Failed to run processor: java.net.ConnectException:Connection timed out: connect See log for more details Failed to run processor: java.net.ConnectException:Connection timed out: connect See log for more details. There was an error during installation