[TYPO3-english] Re: Fatal error: Class 'TYPO3\CMS\Extbase\SignalSlot\Dispatcher' not found in /typo3/sysext/core/Classes

[Jainish Senjaliya]

We have found below option in install tool.

    "Basic Configuration
    System environment
    Database Analyser
    Upgrade Wizard
    Image Processing
    All Configuration
    Clean up
    phpinfo()
    Edit files in typo3conf/
    About
    Logout from Install Tool "


But i can able to find "Important Actions"

While i replaced with typo3 folder and goes to install tool that time this errors display to me.
then after i cant do anything.


I already delete all files from "typo3temp" folders but still those error display to me,.
Thanks,
Jainish Senjaliya