I run webapp <https://github.com/donhuvy/mycustomer>
I face error

> 
> Description:
> 
> 
> The Tomcat connector configured to listen on port 80 failed to start.
>  The port may already be in use or the connector may be misconfigured.
> 
> 
> Action:
> 
> 
> Verify the connector's configuration, identify and stop any process
>  that's listening on port 80, or configure this application to listen
>  on another port.
> 
> 
> 

This is my log <https://gist.github.com/donhuvy/93210850f955f9ddbc00ab735a0ade18#file-terminal-log-L191>

I have been check port 80 by command

```
sudo lsof -i TCP:80 | grep LISTEN

```

But result is nothing. How to fix it? (I use macOS 10.12.5)

**Update:**

Run Sencha client (inside directory `client`)

```
sencha web -port 8082 start

```

and I change Spring Boot port to 8082:

```
APPLICATION FAILED TO START

Description:

The Tomcat connector configured to listen on port 8082 failed to start. The port may already be in use or the connector may be misconfigured.

Action:

Verify the connector's configuration, identify and stop any process that's listening on port 8082, or configure this application to listen on another port.

```