Error with pve-headers

[oX9ke]

Using Proxmox 5.4.6. I have installed pve-headers package but whenever I try to install something that requires it (wireguard) I'm getting the following error:

Error! Your kernel headers for kernel 4.15.18-14-pve cannot be found.
Please install the linux-headers-4.15.18-14-pve package,
or use the --kernelsourcedir option to tell DKMS where it's located

Here is what I get when I try to install pve-headers:

root@proxmox:~# apt install pve-headers
Reading package lists... Done
Building dependency tree       
Reading state information... Done
pve-headers is already the newest version (5.4-1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

I've rebooted twice now after installing pve-headers but still have the same issue.

 

[oX9ke]

Looks like i had to do

apt install pve-headers-4.15.18-14-pve

for some reason. Not sure why it didn't pick up the headers that i needed on its own.