Linker errors made me helpless

I have made a project which is quite big now. I made some changes in the database paths, which are valid. Actually I copied the project on another pc and hence changed the database paths according to run the program. It compiles well but give linker errors in the end. This type of error makes me feel helpless, as I can't do anything with my project. I don't know how to fix this liner errors. Please help
I also sometime get this kind of error without any changing paths. These errors makes of afraid of vc!

What is a database path? If I understand your problem, you built a project on one pc, and then copied all the files onto another pc, and when you built the project there, you got linker errors.

Well, depending on how you built the project, command line make file, dev studio, environment variables could be the cause. Also, do the two pcs have the exact same version of visual c++\patch levels?