Installation Failed: Error starting xxx: Class 'xxx.xxx' ref member out of range

Reducing the number of class level variables will sort out this error. Many devices have a limited memory allotted to declare the class level variables. But remember, this limit is not for an application, but for each class in your application. In short, instead of defining all the class level variables in a single class, it is recommended that you create several classes and distribute your class level variables in all these classes. So the above error will occur when, class level variables in any of your classes in your application has occupied more memory than the allowed for each class. Please also note that, this limitation is for class level variables and not for local variables those you declare inside any method.