If you want to install ExecutableEvents, you have to first check the next page
If you already did it, and still don't work, just check the logs, most of the item you can see what the error is reading at them, here, are common logs errors to know what you did wrong.
NoClassDefFoundError | ClassNotFoundException
In this case you have different versions on EI | EB | EE -> Score
For example have ExecutableItems version 1.0.1 and Score 1.0.0
Example (THIS CAN BE DIFFERENT FOR ALL OF YOU, THE IDEA IS TO SEE THE TYPE OF ERROR)
java.lang.NoClassDefFoundError: com/ssomar/score/api/executableitems/events/RemoveItemInPlayerInventoryEvent
at com.ssomar.executableitems.ExecutableItems.onEnable(ExecutableItems.java:59) ~[ExecutableItems_Prem-5.9.53.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) ~[purpur-api-1.19.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:371) ~[purpur-api-1.19.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:548) ~[purpur-api-1.19.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.v1_19_R1.CraftServer.enablePlugin(CraftServer.java:611) ~[purpur-1.19.2.jar:git-Purpur-1858]
at org.bukkit.craftbukkit.v1_19_R1.CraftServer.enablePlugins(CraftServer.java:525) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:641) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:427) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:343) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1116) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:310) ~[purpur-1.19.2.jar:git-Purpur-1858]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.lang.ClassNotFoundException: com.ssomar.score.api.executableitems.events.RemoveItemInPlayerInventoryEvent
at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:179) ~[purpur-api-1.19.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:126) ~[purpur-api-1.19.2-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?]
... 12 more
Another example having:
ExecutableItems 1.0.1
Score 1.0.1
ExecutableBlocks 1.0.0
[14:48:04 WARN]: [SCore] Task #21 for SCore v3.9.56 generated an exception
java.lang.NoClassDefFoundError: com/ssomar/executableblocks/executableblocks/activators/ActivatorEBFeature
at com.ssomar.score.events.loop.LoopManager$1.run(LoopManager.java:143) ~[SCore-3.9.56.jar:?]
at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftTask.run(CraftTask.java:101) ~[purpur-1.19.2.jar:git-Purpur-1858]
at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:483) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1500) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:486) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1424) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1194) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:310) ~[purpur-1.19.2.jar:git-Purpur-1858]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.lang.ClassNotFoundException: com.ssomar.executableblocks.executableblocks.activators.ActivatorEBFeature
... 9 more
Unknown/missing dependency plugins
This happens when you miss Score plugin
[14:50:36 ERROR]: Could not load 'plugins\ExecutableItems_Prem-5.9.56.jar' in folder 'plugins'
org.bukkit.plugin.UnknownDependencyException: Unknown/missing dependency plugins: [SCore]. Please download and install these plugins to run 'ExecutableItems'.
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:293) ~[purpur-api-1.19.2-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.v1_19_R1.CraftServer.loadPlugins(CraftServer.java:468) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:314) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1116) ~[purpur-1.19.2.jar:git-Purpur-1858]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:310) ~[purpur-1.19.2.jar:git-Purpur-1858]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
