System.aggregate exception for type into iteration in for each row activity?

[loginerror (Maciej Kuźmicz)]

Hi @SUPRIYA123

Please refer to this post and topic:

Installation issue of UiPath community edition

Hi, Please make sure that there is no anti-virus preventing the setup to write in that folder. Also check the permissions for that folder. You can try again by deleting the %localappdata%\UiPath folder and try installing again.