[Solved] I can't add a footprint to a symbol

[Lucky-Luka]

Hi all
I'm following Learn Altium Essentials 2nd ed and I'm stuck at Lesson 4: Doing PCB layout.
I was progressing with the lesson when I noticed that in the previous step I forgot to associate the footprint to the C8 capacitor symbol. The result is that I don't have its footprint in the pcb now.
I don't know why I cannot add the footprint to the symbol and moreover I don't know how to update the pcb. Maybe I have to select design --> import changes from project?
Can anyone help me?
Here the link to download my project: https://www.dropbox.com/s/xtf6d0eqdm...O_V1I1.7z?dl=0
I tried to upload it as 7zip but the action wasn't allowed.

[Lucky-Luka]

Hi all again
It looks like the late hour affected my mental faculties since I was tring to add a footprint to the wrong capacitor that already had a footprint. Now I thik I managed to correct the problem. Now I cannot hide the rat's nest. view --> connections --> hide all ... and nothing happens...
Can you please check if my project is correct so far and if I have updated correctly the pcb with the C8 8085 footprint? Maybe it's a bug in my Altium version that affect the proper conections visualization... https://www.dropbox.com/s/ohr6fa6fdm...O_V1I1.7z?dl=0

[Lucky-Luka]

I still cannot get rid of rat's nest

[goncaloc]

Those lines are from the ERC, and indicate nets that are not routed, to clear the lines, go to the menus "Tools" and select "Reset Error Markers"

[Lucky-Luka]

Oh, thanks. You are right!