Your requirements could not be resolved to an installable set of packages.

[ramizairi]

Problem 1
PS C:\wamp64\www\dashboard-demo> composer update
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

Problem 1
- Root composer.json requires koolreport/pro, it could not be found in any version, there may be a typo in the package name.
Problem 2
- Root composer.json requires koolreport/dashboard, it could not be found in any version, there may be a typo in the package name.

Potential causes:

• A typo in the package name
• The package is not available in a stable-enough version according to your minimum-stability setting
  see https://getcomposer.org/doc/04-schema.md#minimum-stability for more details.
• It's a private package and you forgot to add a custom repository to find it

Read https://getcomposer.org/doc/articles/troubleshooting.md for further common problems.
PS C:\wamp64\www\dashboard-demo>

i got this problem when i tried to write the composer update command

and when i open localhost/dashboard-demo/ it gives me this error :

Warning: require_once(vendor/autoload.php): Failed to open stream: No such file or directory in C:\wamp64\www\dashboard-demo\index.php on line 3 --

1 | 0.0002 | 363400 | {main}( ) | ...\index.php:0