In response to post #82473948. It means that it could not find where New Vegas is installed on your computer, and so you have to point it in the correct direction. Depending on how you have installed New Vegas it could be in a couple different places. If it is installed through Steam then it will likely be in - C:\Program Files (x86)\Steam\steamapps\common\Falloutnewvegas (If you use a different internal drive to store your games then you will need to replace the 'C' drive letter with whatever letter the correct drive is, for example "D:\Program Files (x86)... or E:\Program Files (x86)..." If it is not installed by Steam then you will need to do some digging, but in all likelyhood it will still be in C:\Program Files (x86)\... or C:\Program Files\... so they would be a good place to start. I hope this helps.
