Major We have to change
MyFile.i18n.js
Ext.define("MyFile", {
defaultLabel: "<i18n:text i18n:catalogue='plugin.myplugin' i18n:key='KEY'/>"
});
by
MyFile.js
Ext.define("MyFile", {
defaultLabel: "@plugin.myplugin:KEY@"
});
The exact formalism have to be deceded by looking how other projects do
