We haven't change changed Pega in a long time. We are running 6.3 sp1 on WebSphere 8.5.

Lately, we started to have this error from users trying to "check in" a rule:

ERROR __________ - Unable to write LookupList file
java.lang.Exception: Can't create directory 
file://llc:/LLC/Link-Project/pxLinkedRefTo_RULE-OBJ-ACTIVITY ING-PL-INSURANCERISK BCP-MANAGEBASEPREMIUMRISKRESFIRE #20180103T201453.085 GMT 
for LookupList cache.

This is written to the log by the function "writeResultPage"

Has anyone seen this error before ? Any idea how to resolve this ?

What is this path ? file://llc:/LLC/Link-Project

Thank you.

Here is the Java code generating the error:

if (cacheDir.exists() == false) {
if (cacheDir.mkdirs() == false) {
// In case another thread created it right before we tried to...
if (cacheDir.exists() == false) {
throw new Exception("Can't create directory " + strDirectory + " for LookupList cache.");
}
}
}