I'm really love JetBrains IDEs, I want develop plugin to make me more productive and I can contribute this plugin for community. But when I start to learn how to develop a plugin, I can not find ducuments which I need, almost them was outdated. For instance, I want develop an plugin provide code complete for I18n, I found this document (https://confluence.jetbrains.com/display/IntelliJIDEA/Completion+Contributor) but IDEA show me an error that it can not find com.simpleplugin.psi.SimpleTypes package.
Beside that, I realize your company documents are too difficult for me and people who start plugin development. Please provice more detail document for plugin development.
Thanks and best regards,