Hi everyone, just FYI: I'm a complete newbie, but here's the problem.

I added this lines to my init.el file:

```

(use-package evil

:ensure t ;; install if not already installed

:init ;; start configuration

(setq evil-want-integration t) ;; set to t by default

(setq evil-want-keybinding nil)

(setq evil-vsplit-window-right t)

(setq evil-split-window-below t)

(evil-mode))

(use-package evil-collection

:after evil

:ensure t

:config

(evil-collection-init))

```
but when i evaluate the buffer, i get these errors in the warnings buffer:

```

Error (use-package): Failed to install evil: Package ‘evil-’ is unavailable

Error (use-package): evil/:init: Symbol’s function definition is void: evil-mode

Error (use-package): Cannot load evil

Error (use-package): Failed to install evil-collection: Package ‘evil-collection-’ is unavailable

Error (use-package): Failed to install evil: Package ‘evil-’ is unavailable

Error (use-package): evil/:init: Symbol’s function definition is void: evil-mode

Error (use-package): Cannot load evil

Error (use-package): Failed to install evil-collection: Package ‘evil-collection-’ is unavailable

​

```

what do i have to do to fix this?