I got the following error in Tibco.
com.tibco.xml.data.primitive.PrefixToNamespaceResolver$PrefixNotFoundException: Prefix not found: 'tib'
Before using any tib:
prefixed XSLT function you have to define the prefix. Select the process, click the namespace registry
button and add
the namespace http://www.tibco.com/bw/xslt/custom-functions
with prefix tib
.