magento version 2.3. Admin login showing this error. how can i solve it?

[vishnu_haridas2]

magento 2.3 installed succesfully. when i try to login admin, this error occurs. how can i solve it?
Fatal error: Uncaught TypeError: explode() expects parameter 2 to be string, integer given in C:\xampp\htdocs\magento\vendor\magento\framework\Encryption\Encryptor.php:274 Stack trace: #0 C:\xampp\htdocs\magento\vendor\magento\framework\Encryption\Encryptor.php(274): explode(':', 1) #1 C:\xampp\htdocs\magento\vendor\magento\framework\Encryption\Encryptor.php(207): Magento\Framework\Encryption\Encryptor->getPasswordVersion() #2 C:\xampp\htdocs\magento\vendor\magento\framework\Encryption\Encryptor.php(197): Magento\Framework\Encryption\Encryptor->isValidHash('adminuser', '4f5cec75c744bd3...') #3 C:\xampp\htdocs\magento\vendor\magento\module-user\Model\User.php(605): Magento\Framework\Encryption\Encryptor->validateHash('adminuser', '4f5cec75c744bd3...') #4 C:\xampp\htdocs\magento\generated\code\Magento\User\Model\User\Interceptor.php(206): Magento\User\Model\User->verifyIdentity('adminuser') #5 C:\xampp\htdocs\magento\vendor\magento\module-user\Model\User.php(577): Magento\User\Model\User\Interceptor->verifyIdentity('adminus in C:\xampp\htdocs\magento\vendor\magento\framework\Encryption\Encryptor.php on line 274


line 274~
/**
     * Get password version
     *
     * @return array
     */
    private function getPasswordVersion()
    {
        return array_map('intval', explode(self:ELIMITER, $this->passwordHashMap[self:ASSWORD_VERSION]));
    }

any idea what i should do?

[prema_mani1]

Hi @vishnu_haridas2,

Sometimes it would be because of permission (read/write/execute) to var and pub directory.

sudo chmod -R 777 var/ pub/ generated/

Also try clearing the cache

sudo rm -rf var/cache/* var/generation/*

However it might be something to do with the di folder, this might also work:

Delete the di folder from the var directory
sudo php bin/magento setup:di:compile

Reset file permissions.

[sergiikonet]

Hi, prema_mani1, I have the same error. Can You more detalizes explain how to consider it? I'm installing Magento first time on OS Windows 10. Thank You!