Insufficient disk space / Error writing to Disk: when using photo library manager

Question

First I couldn't open my iphoto library (again!) so I am rebuilding my library (again- 4th time). NOW I'm told I donot  have sufficient disk space to import photos.
Using OSX 10-9-5  Memory 4GB
And just as I'm writing this I get Error Writing to disk memo
iPhoto cannot import your photos because there was a problem writing to the volume containing your iPhoto library.

Answer 1

Freeing Up Space on The Hard Drive
  1. See Lion/Mountain Lion/Mavericks' Storage Display.
  2. You can remove data from your Home folder except for the /Home/Library/ folder.
  3. Visit The XLab FAQs and read the FAQ on freeing up space on your hard drive.
  4. Also see Freeing space on your Mac OS X startup disk.
  5. See Where did my Disk Space go?.
  6. See The Storage Display.
You must Empty the Trash in order to recover the space they occupied on the hard drive.
You should consider replacing the drive with a larger one. Check out OWC for drives, tutorials, and toolkits.
Try using OmniDiskSweeper 1.8 or GrandPerspective to search your drive for large files and where they are located.
If you select the disk icon for your hard drive on the Desktop, then Press COMMAND-I to open the Get Info window. In the upper panel it will show your drive's space statistics - Capacity, Used, and Available. It is the latter you are interested in to see how much space is left on the drive. If you have less than 1 GB or so, then you must stop trying to write to the drive or you may corrupt it completely.