when running bower install there is conflict version dependency between laverna and marionette :
Unable to find a suitable version for underscore, please choose one:
1) underscore#1.4.4 - 1.6.0 which resolved to 1.6.0 and is required by marionette#2.2.2
2) underscore#>=1.7.0 which resolved to 1.7.0 and is required by backbone#1.2.3, backbone#1.2.3
3) underscore#>=1.5.0 which resolved to 1.7.0 and is required by backbone#1.1.2, backbone#1.1.2
4) underscore#~1.7.0 which resolved to 1.7.0 and is required by laverna
5) underscore#>=1.3.3 <=1.8.3 which resolved to 1.7.0 and is required by backbone.wreqr#1.3.5
6) underscore#>=1.4.0 <=1.8.3 which resolved to 1.8.3 and is required by backbone.babysitter#0.1.10
when running bower install there is conflict version dependency between laverna and marionette :
Seems 4 is the good choice ?