I'm receiving this error when trying to run a Jenkins Job. The file configuration seems to be valid. What steps should I take to troublshoot this issue?
Problem: failed to create task or type antlib:com.salesforce:deploy Cause: The name is undefined. Action: Check the spelling. Action: Check that any custom tasks/types have been declared. Action: Check that any <presetdef>/<macrodef> declarations have taken place. No types or tasks have been defined in this namespace yet This appears to be an antlib declaration. Action: Check that the implementing library exists in one of: -/usr/share/ant/lib -/var/lib/jenkins/.ant/lib -a directory added on the command line with the -lib argument