Basically, wrote a plugin. Makes OK. Try to run the prepare plugin for deployment action. Always get error that says
duplicate entry META_INF/MANIFEST.MF
followed by the absolute path to my plugin folder ending with a (non-existant) <MyPluginName>.zip
There is no MY_PLUGIN_NAME.zip file present in the absolute path referencedin the rror message, or anywhere else for that matter.
This is the stupidest plugin you can imagine,it does nothing and just exists to prove the process works.