Forum OpenACS Q&A: Re: Invalid command name "::thread::create", invoked from within ns_mutex eval ns_mutex::throttle

Dear Ann,

apparently, your installation lacks Tcl thread support

When one installs Naviserver from installation script here, thread support should be compiled and enabled in your tcl installation via the --enable-threads configuration flag.

Just a wild guess: can it be that a different tcl version was installed e.g. via the package manager that is lacking thread support and this is overriding the compiled one? I would also check the log file at startup for possible hints.