Passing classes to store.adapterFor has been removed [Error]

[vysakh0]

When saving the attachment, I get the error

Passing classes to store.adapterFor has been removed. 
Please pass a dasherized string instead of myapp@model:car:

I use ember-data - 2.1.0-beta-5 , is it because the plugin is only for versions before 2.0 ? Is there any workaround to get past this error?