I made an economy plugin for a server and i tried to link it to SignShop. When i tried to compile my ide tell me that he cannot found the classes (org.wargamer2010.signshop.events.SSMoneyTransactionEvent).

So i tried to do mvn org.apache.maven.plugins:maven-install-plugin:2.5.2:install-file -Dfile=SignShop-3.6.2.jar to add it to my maven depedencies. Maven tell that all is ok. But when i do mvn clean compile with my ide, he tell me again that he cannot found the classes.

I am not sure what you are trying to do, but SignShop hooks to economies with Vault, not directly. If you are trying to listen to the event perhaps you have a typo somewhere in an import statement or when you ran one of those commands. Not much I can do to help without seeing the actual errors. For faster help, join the Discord https://discord.gg/4wnyysf

It was figured out in Discord that the mvn org.apache.maven.plugins:maven-install-plugin:2.5.2:install-file -Dfile=<path-to-file> command installed the artifact in their local repository under org.makershaven and their pom.xml was looking under org.wargamer2010 The fix is to either change the pom.xml to match or use mvn install:install-file -Dfile=<path-to-file> -DgroupId=<group-id> -DartifactId=<artifact-id> -Dversion=<version> -Dpackaging=<packaging> to correctly specify the id.