[TYPO3-install] Re: Re: Blank page after upgrading from 6.1.7 to 6.2

[Andrey Aksenov]

After a long break back. 
It seems the reason set ...
Error output added to the beginning of the file typo3/sysext/install/Start/Install.php:
ini_set('display_errors',1);
error_reporting(E_ALL);

Then found out that the cause of the error was the extension t3quixplorer:
Fatal error: Uncaught exception 'TYPO3\Flow\Package\Exception\MissingPackageManifestException' with message 'No composer manifest file found at "/var/www/typo3/data/www/zhivoy-rodnik.ru/typo3conf/ext/t3quixplorer//composer.json".' in /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Resources/PHP/TYPO3.Flow/Classes/TYPO3/Flow/Package/PackageManager.php on line 852 TYPO3\Flow\Package\Exception\MissingPackageManifestException: No composer manifest file found at "/var/www/typo3/data/www/zhivoy-rodnik.ru/typo3conf/ext/t3quixplorer//composer.json". in /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Resources/PHP/TYPO3.Flow/Classes/TYPO3/Flow/Package/PackageManager.php on line 852 Call Stack: 0.0002 644792 1. {main}() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/install/Start/Install.php:0 0.0156 4744064 2. TYPO3\CMS\Core\Core\Bootstrap->loadConfigurationAndInitialize() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/install/Start/Install.php:119 0.0211 5228344 3. TYPO3\CMS\Core\Core\Bootstrap->initializePackageManagement() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Classes/Core/Bootstrap.php:233 0.0301 7126720 4. TYPO3\CMS\Core\Package\PackageManager->initialize() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Classes/Core/Bootstrap.php:322 0.0307 7151960 5. TYPO3\CMS\Core\Package\FailsafePackageManager->loadPackageStates() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Classes/Package/PackageManager.php:130 0.0310 7171216 6. TYPO3\CMS\Core\Package\PackageManager->scanAvailablePackages() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Classes/Package/FailsafePackageManager.php:69 0.0738 7881016 7. TYPO3\CMS\Core\Package\FailsafePackageManager->registerPackagesFromConfiguration() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Classes/Package/PackageManager.php:393 0.0738 7881016 8. TYPO3\CMS\Core\Package\PackageManager->registerPackagesFromConfiguration() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Classes/Package/FailsafePackageManager.php:81 0.1072 8600896 9. TYPO3\CMS\Core\Package\PackageFactory->create() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Classes/Package/PackageManager.php:459 0.1074 8603672 10. TYPO3\CMS\Core\Package\Package->__construct() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Classes/Package/PackageFactory.php:69 0.1076 8628176 11. TYPO3\CMS\Core\Package\Package->loadFlagsFromComposerManifest() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Classes/Package/Package.php:98 0.1076 8628256 12. TYPO3\Flow\Package\Package->getComposerManifest() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Classes/Package/Package.php:111 0.1076 8628392 13. TYPO3\Flow\Package\PackageManager::getComposerManifest() /var/www/TYPO3.CMS-25c60e4/typo3/sysext/core/Resources/PHP/TYPO3.Flow/Classes/TYPO3/Flow/Package/Package.php:386

Removed mention from the settings and a folder with the extension. The error disappeared, and appeared familiar Install Tool.
It would be good to mention it (the process of debugging and extension t3quixplorer, making it difficult to install) somewhere in the documentation.