Some hints to help you learn how to read the gibberish.
1) Those are linker errors, as opposed to compiler errors. You should read up on exactly what the compiler, linker, loader, etc. all do, because they are very different programs.
2) Once you understand what linking is, it should be fairly obvious that these particular link errors mean "the linker expected to find something called X because you used it in one part of your program, but it couldn't find X anywhere in your program or the stuff you linked it to." Usually that means you aren't linking to all of the right libraries. But sometimes these can be caused by errors in your code, such as declaring a function and never defining it, not putting the right things in cpp versus hpp files, or forgetting/misusing keywords like extern. In my experience googling the specific linker error number and message (in this case, "LNK2019: unresolved external symbol") usually helps pin down those issues.
