When I started my 1.17 server my friends wanted shaders so they joined with 1.16.5. I had viaversion installed. When they joined they got outdated or sth like that. when I checked the logs I found:
| [08:13:25] [Server thread/INFO]: [ViaVersion] Enabling ViaVersion v4.0.0 | |
| 176 | [08:13:25] [Via-Mappingloader-0/INFO]: [ViaVersion] Loading 1.12 -> 1.13 mappings... |
| 177 | [08:13:25] [Via-Mappingloader-1/INFO]: [ViaVersion] Loading 1.13 -> 1.13.2 mappings... |
| 178 | [08:13:25] [Via-Mappingloader-2/INFO]: [ViaVersion] Loading 1.13.2 -> 1.14 mappings... |
| 179 | [08:13:25] [Via-Mappingloader-3/INFO]: [ViaVersion] Loading 1.14 -> 1.15 mappings... |
| 180 | [08:13:25] [Via-Mappingloader-4/INFO]: [ViaVersion] Loading 1.15 -> 1.16 mappings... |
| 181 | [08:13:26] [Via-Mappingloader-5/INFO]: [ViaVersion] Loading 1.16 -> 1.16.2 mappings... |
| 182 | [08:13:26] [Server thread/ERROR]: [ViaVersion] Unable to inject ViaVersion, please post these details on our GitHub and ensure you're using a compatible server version. |
| 183 | [08:13:26] [Server thread/ERROR]: [ViaVersion] ViaVersion failed to inject: |
| 184 | [08:13:26] [Server thread/WARN]: java.lang.ClassNotFoundException: net.minecraft.server.v1_17_R1.MinecraftServer |
| 185 | [08:13:26] [Server thread/WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:142) |
| 186 | [08:13:26] [Server thread/WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:99) |
| 187 | [08:13:26] [Server thread/WARN]: at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519) |
| 188 | [08:13:26] [Server thread/WARN]: at java.base/java.lang.Class.forName0(Native Method) |
| 189 | [08:13:26] [Server thread/WARN]: at java.base/java.lang.Class.forName(Class.java:375) |
| 190 | [08:13:26] [Server thread/WARN]: at com.viaversion.viaversion.bukkit.util.NMSUtil.nms(NMSUtil.java:38) |
| 191 | [08:13:26] [Via-Mappingloader-6/INFO]: [ViaVersion] Loading 1.16.2 -> 1.17 mappings... |
| 192 | [08:13:26] [Server thread/WARN]: at com.viaversion.viaversion.bukkit.platform.BukkitViaInjector.getServerConnection(BukkitViaInjector.java:262) |
| 193 | [08:13:26] [Server thread/WARN]: at com.viaversion.viaversion.bukkit.platform.BukkitViaInjector.inject(BukkitViaInjector.java:58) |
| 194 | [08:13:26] [Server thread/WARN]: at com.viaversion.viaversion.ViaManagerImpl.init(ViaManagerImpl.java:94) |
| 195 | [08:13:26] [Server thread/WARN]: at com.viaversion.viaversion.ViaVersionPlugin.onEnable(ViaVersionPlugin.java:135) |
| 196 | [08:13:26] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) |
| 197 | [08:13:26] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:342) |
| 198 | [08:13:26] [Server thread/WARN]: at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:480) |
| 199 | [08:13:26] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_17_R1.CraftServer.enablePlugin(CraftServer.java:495) |
| 200 | [08:13:26] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_17_R1.CraftServer.enablePlugins(CraftServer.java:409) |
| 201 | [08:13:26] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.loadWorld(MinecraftServer.java:608) |
| 202 | [08:13:26] [Server thread/WARN]: at net.minecraft.server.dedicated.DedicatedServer.init(DedicatedServer.java:264) |
| 203 | [08:13:26] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:987) |
| 204 | [08:13:26] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:307) |
| 205 | [08:13:26] [Server thread/WARN]: at java.base/java.lang.Thread.run(Thread.java:831) |
Can you help me?