Forum .LRN Q&A: Re: Problems with dotLRN 2.2.0 upgrade
Installing a different version of tcl and having an appropriate tclsh around is not enough. You have to recompile the aolserver. Do a "make clean" in the aolserver source directory and run "configure --with-tcl=...." pointing the the correct tcl tree. After that, you have to recompile the aolserver modules (ns_cache, ....) as well.
Concerinjg the xotcl error message: it says only that an error occured during an instproc definition, but not, what the error is.