hi fnds.....I have a Unity solution which is developed in old version of Unity framework and im using latest one. can i able to run the solution in my frame work? or not?

Question

hi fnds.....I have a Unity solution which is developed in old version of Unity framework and im using latest one. can i able to run the solution in my frame work? or not? while im loading solution it takes too much off time and at last it appears the "FSBTool.exe has stopped working" and UnwrapCL.exe has stopped working. how can i resolve this kind of problem. and let tell me what i do to run the solution in my latest version of framework? [1]: /storage/temp/71004-1.jpg