@JenniferWilson
"This is caused because your keyring password is different from your user password. You've probably changed your user password from the command line.
Just change your user password with the graphical Users tool located on System Settings. That will change both your password and the keyring password at the same time.
Alternatively, open "Password and encription keys" from Unity. Choose View » By keyring. Right click on Session Start and select "Change password". You're being asked for the same password, though, that is probably the last password you've set on your user."