So, I´ve been looking and a lot of people had this problem. I found a solution but it is for blender 2.68.
And it is different (The script game_engine_save_as_runtime is not the same in 2.68 and 2.69)
This was mentioned a few months ago, the exporter is trying to put add a .blend to a filepath after its called. To fix you must open your scripts/addons/ game_engine_save_as_runtime.py file…In it you will see a section that looks like this starting at line 107
i’m also in a bit of trouble im trying to addlink with 3dcoat and ive watched the tutorial from 3dcoat website but this keeps on poping out traceback and im stuck so please can someone help me. thanks