I have installed 7.2.28 on my iMac late 2011 running MacOSX Mavericks.

I clicked BONIC manager then "ownership or permissions are not properly; reinstall BONIC (error code -1103)" message appeared on a screen. I reinstalled 7.2.28 but same message appeared.

7.0.x installed before Mavericks works on Mavericks.

Are there any solutions?

Other than to reinstall BOINC (not BONIC), none that I know of. Have you tried rebooting?

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Thank you for your answer.

I have already tried reboot before posting the message but not solved.

OK, I asked the developers. They've told me that it's a permissions problem.

1. Prior to reinstalling BOINC, use the BOINC Uninstaller first. Then reinstall.
2. When that doesn't work, try to download the BOINC installer again, in case the prior version was corrupted somehow.
3. The last option is to run the Make_SA_Secure.sh script available from the link at the start of the ReadMe file that comes with the Mac BOINC installer. See http://boinc.berkeley.edu/wiki/Tools_for_Mac_OS_X#Using_BOINC.27s_security_features_with_the_stand-alone_BOINC_Client.

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Jord,

Thank you your advice.

I notice that I have used "Pacfist" as installer to install 7.2.28.

So, I have successfuly installed 7.2.28 by using MacOSX standard installer.