Error during Installation: All parts of a PRIMARY KEY must be NOT NULL; if you need NULL in a key, use UNIQUE instead error SQL has happened
Sometimes this error comes during installation.
This is mainly because of the incompatibility MySQL version with QloApps.
MySQL versions below 5.7 are compatible with QloApps.
So this error comes at MySQL version 5.7 so we recommend you to use a lower version of MySQL like 5.6 or 5.5
This error has been resolved. Please replace the attached file on this path