Question: here is what is happening <https://imgur.com/a/fblot>

yes i've read the article about optional 

but that textfield isn't nil or without a value as it does it
when i press enter when theres a value in the text-bar
i also tried ! and ? with same results

i tried many many things and it wont work
always the same crash

can someone explain what is the reason that textfield is hard to access

i tried 

```
var = ViewControler()

```

Answer: 
Try to use the following commands to enlarge the number of handlers that actives the watcher (listener of application changes)

`sudo sysctl fs.inotify.max_user_watches=524288`
`sudo sysctl -p --system`
I have got that root cause.. i have not made any database using mongodb its a connection error..

thanks Mark for your time.