issue with codebase of under checkpoints after 2.4

the codebase of trainer app after checkpoint 2.4 is not working please anyone check that it gives various types of errors in every checkpoint like
1.Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https. in checkpoint(2.6)
2.angular.js:11413 Error: [$compile:tpload] Failed to load template: partials/start.html  (in 2.6)
and so on