Got an error in `php artisan migrate` in Laravel - mysql

Question

I always use Laravel project since Laravel 4 up to 7. But this is my first time encountering and error when I migrate my database in freshly download Laravel. This is the error when I migrate:
$e = $event->getThrowable();
if (!$event->hasResponse()) {
$this->finishRequest($request, $type);
throw $e;
}
$response = $event->getResponse();
// the developer asked for a specific status code
if (!$event->isAllowingCustomResponseCode() && !$response->isClientError() && !$response->isServerError() && !$response->isRedirect()) {
// ensure that we actually have an error response
if ($e instanceof HttpExceptionInterface) {
// keep the HTTP status code and headers
$response->setStatusCode($e->getStatusCode());
$response->headers->add($e->getHeaders());
} else {
$response->setStatusCode(500);
}
}
try {
return $this->filterResponse($response, $request, $type);
} catch (\Exception $e) {
return $response;
}
}
/**
* Returns a human-readable string for the specified variable.
*/
private function varToString($var): string
{
if (\is_object($var)) {
return sprintf('an object of type %s', \get_class($var));
}
if (\is_array($var)) {
$a = [];
foreach ($var as $k => $v) {
$a[] = sprintf('%s => ...', $k);
}
return sprintf('an array ([%s])', mb_substr(implode(', ', $a), 0, 255));
}
if (\is_resource($var)) {
return sprintf('a resource (%s)', get_resource_type($var));
}
if (null === $var) {
return 'null';
}
if (false === $var) {
return 'a boolean value (false)';
}
if (true === $var) {
return 'a boolean value (true)';
}
if (\is_string($var)) {
return sprintf('a string ("%s%s")', mb_substr($var, 0, 255), mb_strlen($var) > 255 ? '...' : '');
}
if (is_numeric($var)) {
return sprintf('a number (%s)', (string) $var);
}
return (string) $var;
}
}
Error
Stack trace:
#0 D:\Supporting Enterprises\Projects\Laravel Projects\SuperpagesAPI\artisan(18): require()
#1 {main}
thrown in D:\Supporting Enterprises\Projects\Laravel Projects\SuperpagesAPI\vendor\autoload.php on line 7
Fatal error: Uncaught Error: Class 'ComposerAutoloaderInitbe984857c53a573c5f216d0eb36fe0e7' not found in D:\Supporting Enterprises\Projects\Laravel Projects\SuperpagesAPI\vendor\autoload.php:7
Stack trace:
#0 D:\Supporting Enterprises\Projects\Laravel Projects\SuperpagesAPI\artisan(18): require()
#1 {main}
thrown in D:\Supporting Enterprises\Projects\Laravel Projects\SuperpagesAPI\vendor\autoload.php on line 7
Before this happen I start IIS from the IIS Manager. I don't know if this will effect. I turn it on because I run a C# web application on my end.

Answer 1

It looks like this is composer problem. Just try to run this bash script:
composer dump-autoload