Since no one else is willing to give it a try here is one more thing you can try. I have also attached a document for you to look through with pictures.
Please know I am trying to help you, so if this does not help you please reply letting me know and I can dig further.
How to Add your photos to Photos by importing your iPhoto library...
If you have a single iPhoto Library
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If you're upgrading to Photos for OS X from iPhoto and you've only ever had a single iPhoto library on your Mac, your upgrade path is easy: After you open the app for the first time, Photos will automatically import all your iPhoto images into the app.
Your old iPhoto library will still remain if you need to use iPhoto for whatever reason, but changes made to those older images won't automatically sync to your new Photos library. If you don't need your old iPhoto library, you can toss it in the trash — your images are now safely in Photos (and, if you've turned on iCloud Photo Library, in iCloud as well).
If you're working with multiple libraries
Photos for OS X is only compatible with one pri***** *****brary per Mac: This means that you can't combine multiple old iPhoto or Aperture libraries into one master library. (Aperture does have this capability, if you need to merge some libraries; you can follow this “how-to guide” for more information on that front.)
As such, if you have multiple libraries on your machine, Photos will ask you to select which library you'd like to import when you first launch the app. Once you've selected the library you want to use, Photos will prep and import those images.
You can still upgrade your other older libraries to separate Photos libraries; you'll just have to individually import each one by option-clicking the Photos icon when starting the app. This brings up the "Choose Library" screen, where you can select a current Photos library or an older iPhoto or Aperture library to import.
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These other Photos libraries function identically to each other, with one exception: Only one library can be synced with iCloud Photo Library at a time. Your others will be held locally in (or externally, if you have them on a hard drive) siloes from iCloud's sync service.