Sometimes the file/folder permissions (or owner) for Indigo Server can become incorrect. This can result in an error when starting the Indigo Server or it can cause reflectors to fail to create.
There are a few ways the permissions can become incorrect. If you used Apple's Migration Assistant tool to copy files from one Mac to another (or after an OS X upgrade) then that can result in incorrect file/folder owners. Or sometimes a poorly written installer sets incorrect file/folder permissions recursively on the entire /Library/Application Support/
folder. This can result in problems not just with Indigo, but with all types of applications (yikes!).
First, if you're using Indigo 6 or later, try rerunning the installer for your version (download installers from the downloads page). That will usually fix any permission issues (and will leave all your settings in place).
If that doesn't work, we've created a tiny application that tries to heal the common Indigo file/folder permissions (and owner) problems. To use it:
Indigo→Stop Server
menu itemIndigo Perm Fixer.app
and choose the Open
menu itemIf Indigo still cannot launch (or your reflector still isn't working) then paste the results of step #6 above into an email to support so we can help troubleshoot the problem further.