The script was compiled into a DLL in the older software. The old DLL
from the prior version is still in the Opensim\bin\ScriptCache folder.
After the update, the old DLL's no longer know how to find the method.
Recompiling the script recreates the DLL with the correct pointers.
There is a DeleteScriptsOnStartup setting in Opensim.ini that will clear
out all script DLLs. Toggle the variable to True and boot one region.
The DLL's will be regenerated on startup. Then you can disable the
script deletion by setting it to false. This action leaves the .state
files in place. The .state files persist the state of the script.
This is so virtual pets and other scripts do not lose their data.
You can also just delete the contents of the Scriptcache folder.
DreamGrid has a set of Cache Delete buttons for manual deletion, and it
also detects that Opensim has changed revs and will delete just the old
DLLS as needed, leaving the state files behind.
;# {DeleteScriptsOnStartup} {} {Delete previously compiled script DLLs
on startup?} {true false} true
;; Controls whether previously compiled scripts DLLs are deleted on sim
restart. If you set this to false
;; then startup will be considerably faster since scripts won't need to
be recompiled. However, then it becomes your responsibility to delete the
;; compiled scripts if you're recompiling OpenSim from source code and
internal interfaces used
;; by scripts have changed.
DeleteScriptsOnStartup=False
;
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