Failed to retrieve com.vaadin:vaadin-client-compiler based on project POM

[jealfonso]

I am driving crazy with Vaadin now since the compiler started to produce errors that do not let me continue developing

Failed to retrieve com.vaadin:vaadin-client-compiler based on project POM
Using com.vaadin:vaadin-client-compiler version 7.6.6
Loading inherited module 'com.trident.access.MyAppWidgetset'
Loading inherited module 'com.vaadin.DefaultWidgetSet'
Loading inherited module 'com.vaadin.Vaadin'
Loading inherited module 'com.google.gwt.user.User'
Loading inherited module 'com.google.gwt.core.Core'
Loading inherited module 'com.google.gwt.core.CompilerParameters'
[ERROR] Element 'module' beginning on line 17 contains unexpected attribute 'type'
[ERROR] Failure while parsing XML
com.google.gwt.core.ext.UnableToCompleteException: (see previous log entries)

I do not find a way to correct this situation. have gone to compiler 7.6.6 but no results, same errors