first VirtualHost must be localhost in httpd-vhosts.conf - virtualhost

Question

Context: fresh wampserver 3.x install (windows10)
port 80 was used by microsoft iis so i change the port using wampserver tool (right click on the icon). Wampserver manage itself to change the port with 8080.
at this moment, httpd-vhosts.conf content is
# Virtual Hosts
#
<VirtualHost *:8080>
ServerName localhost
ServerAlias localhost
DocumentRoot "${INSTALL_DIR}/www"
<Directory "${INSTALL_DIR}/www/">
Options +Indexes +Includes +FollowSymLinks +MultiViews
AllowOverride All
Require local
</Directory>
</VirtualHost>
and hosts content is:
#
127.0.0.1 localhost:8080
::1 localhost:8080
Purpose: create virtualhost for my project like http://myproject.localdev instead of http://localhost:8080/myproject/public/
what's going bad ?
by using wampserver link to create virtualhost, i got the error message below
first VirtualHost must be localhost in c:/wamp64/bin/apache/apache2.4.33/conf/extra/httpd-vhosts.conf

Answer 1

I used 8080 port too and had the same problem. What I've done - in httpd-vhosts.conf I added localhost with port 80 anyway, so I had both port 80 and port 8080:
<VirtualHost *:80>
ServerName localhost
....
<VirtualHost *:8080>
ServerName localhost
After that I opened localhost:8080 - there was a warning "Port used for the VirtualHost is not an Apache Listen port". Newertheless I clicked "Add a Virtual Host". The new host was added, then I restarted DNS (WAMP - Tools - Restart DNS).
After all you can delete from httpd-vhosts.conf localhost:80