(fails at `pip install -r requirements.txt` error: `Could not find a version that satisfies the requirement fastapi (from -r requirements.txt (line 2)) (from versions: `)
One thing to be aware of is that when issuing the `sudo node_modules/@angular/cli/bin/ng build --configuration="production"` command, if you do not have enough memory on your server, the process will get "Killed". This is likely to happen when trying to compile on the lowest machines with less than 1.5GB of memory. To get around this you can either add more memory or create a swap file. Here is a great guide on [creating a swap file](https://linuxize.com/post/create-a-linux-swap-file/).
When you try to start wg0 from the web interface, you may see on your terminal session:
`RNETLINK answers: Operation not supported. Unable to access interface: Protocol not supported`
This can sometimes be fixed with ```sudo apt upgrade```
To fix this, we need to reconfigure the Kernel module. In some cases, the following commands will fix your issue:
```
dpkg-reconfigure wireguard-dkms
modprobe wireguard
```
You may get an error on the first command
```
Module build for kernel 4.19.0-10-cloud-amd64 was skipped since the
kernel headers for this kernel does not seem to be installed.
```
We'll need to install the Kernel headers.
Find out which Kernel we are already on
```
uname -r
```
Search if your Kernel headers are in the repositories.
```
apt search linux-headers-$(uname -r)
```
If so then install them:
```
apt install linux-headers-$(uname -r)
```
If not, we'll need to upgrade your Kernel. My Kernel was 4.19.0.10 so I did a search for 4.19.0 and found 4.19.0.11. This will be a minnor release so nothing to be too worried about.
