[quote user="Fabian Nenniger1"]Missing requirement: Hercules Emulation 5.5.1 (com.ti.ccstudio.hercules.win32.feature.group 5.5.1) requires 'com.ti.ccstudio.installer.win32.feature.group 5.5.0' but it could not be found[/quote]The same error in trying to update Hercules Emulation in CCS 5.4 was reported in Unable to access the DAP on RM42 Hercules Development Kit (HDK) - but that thread doesn't contain a solution to allow CCS 5.4 to update Hercules Emulation.
Can you try and migrate to CCS 5.5?