Troubleshooting
When running Mychem, you may encounter certain errors that prevent the Mychem software to run perfectly. The purpose of this chapter is to help you to diagnose and correct some of these errors.
AppArmor
AppArmor is a Linux Security Module implementation of name-based access
controls. AppArmor confines individual programs to a set of listed
files. The default configuration of AppArmor does not permit the use of
Mychem. In fact, MySQL is not allowed to access the Open Babel library.
To fix this problem, the following lines must be added to the
/etc/apparmor.d/local/usr.sbin.mysqld file:
/usr/lib/openbabel/* m,
/usr/lib/openbabel/2.3.2/* m,
/usr/share/openbabel/* r,
/usr/share/openbabel/2.3.2/* r,
**Note**
Replace 2.3.2 by the version of OpenBabel on your system (2.3.0,
2.3.1, ...).
Other Errors
If you encounter an error not listed here, please report it on our bug tracking system.