To make the debugger appear, you must change settings in Adobe Acrobat
Pro.Open LiveCycleOpen Adobe Acrobat ProIn Adobe Acrobat pro ► Edit ►
Preferences ►JavaScript►Check: Enable Acrobat Javascript►Check: Enable
JavaScript Debugger after Acrobat is restarted►Check: Enable interactive
console►Check: Show console on errors and messagesyou can also see here
how to do itLiveCycle ES2 * Adobe LiveCycle Designer ES2