When installing Apps it asks for a password, I type it correctly and it gives an erro

[martiano]

hello, (I repeat this message in English, my apologies)

I come from Windows, I am new to Linux and Ubuntu. I just installed Ubuntu 24.04 for the first time.
I have Windows 10 on an SSD and I installed Ubuntu on a different SSD. They remain in dual mode.

When installing I chose to start without asking for a password.
(when everything was complete and working I planned to change to "ask for password at startup")

Ubuntu starts fine, the OS was updated correctly (it did not ask for a password)
Wanting to install Applications, it asks for the password, I write it, the installation does not start and the message appears:

PackageKit error: PackageKitError.notAuthorized
Failed to obtain authentication

The password is fine, written carefully, but there is no way
I don't understand,

can anybody help me?

thank you and greetings

[gezzer2]

just a guess .. you didn't have caps lock on when you inputted the password to begin with ? ..

[martiano]

Thanks for answering gezzer2, I tried every way without finding a solution. But I did end up solving it by reinstalling Ubuntu from scratch, so: SOLVED

[gezzer2]

harsh but effective. glad you got it sorted ..