AutomateLab

UiPath errors / Schema

The given key was not present in the dictionary

platform: UiPath / category: Schema

Cause

Code or a queue handler reads a dictionary/queue-item field by a key that does not exist at runtime — misspelled, wrong case, or never populated.

Fix

Guard access with ContainsKey (If: myDict.ContainsKey("KeyName")) and handle the missing case. Verify exact key names against the queue item schema. Wrap access in Try-Catch on KeyNotFoundException to log the missing key. For REFrameworks, confirm SpecificContent fields are populated before Process Transaction.

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