Uvegtigris

Exact same message. latest TLauncher 2.8. (the server is new forge server (1.17.1_forge37.0.45) without any aditional mod. The forge server starts fine without error.) latest Java installed on the cilent machine: 1.8.0.301 when the client is lounched : [Launcher] Starting Minecraft 1.17.1-forge-37.0.45... [Launcher] Launching in: C:\Users\Tigris\AppData\Roaming\.minecraft Starting garbage collector: 177 / 303 MB Garbage collector completed: 38 / 307 MB [Launcher] Processing post-launch actions. Assist launch: true =============================================================================================== WARNING: Unknown module: cpw.mods.securejarhandler specified to --add-exports WARNING: Unknown module: cpw.mods.securejarhandler specified to --add-opens Exception in thread "main" java.lang.ExceptionInInitializerError at cpw.mods.jarhandling.impl.Jar.<init>(Jar.java:90) at cpw.mods.jarhandling.SecureJar.from(SecureJar.java:58) at cpw.mods.jarhandling.SecureJar.from(SecureJar.java:50) at cpw.mods.jarhandling.SecureJar.from(SecureJar.java:42) at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:60) Caused by: java.util.NoSuchElementException: No value present at java.base/java.util.Optional.orElseThrow(Optional.java:377) at cpw.mods.jarhandling.impl.SecureJarVerifier.<clinit>(SecureJarVerifier.java:16) ... 5 more Here I am! [VersionManager] Refreshing versions locally... [VersionManager] Versions has been refreshed (7 ms) [Launcher] Minecraft closed with exit code: 1 [Launcher] Launcher exited.