KUKA Robot codes
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KUKA Robot Controller

System · Basic

Alarm KRC0825

KUKA Robot KRC0825 - “THEN” EXPECTED 2161

This syntax error occurs during KRL program compilation when the parser encounters a statement that is missing a required THEN keyword in a conditional structure. The compiler expected to find THEN after an IF condition but found a different token instead, preventing successful program interpretation.

KUKA RobotSystemBasic

KRC0825

KUKA Robot KRC0825 - “THEN” EXPECTED 2161

“THEN” EXPECTED 2161

This syntax error occurs during KRL program compilation when the parser encounters a statement that is missing a required THEN keyword in a conditional structure. The compiler expected to find THEN after an IF condition but found a different token instead, preventing successful program interpretation.

Common Causes

  • Missing THEN keyword after an IF condition statement
  • Incorrect syntax in IF...THEN...ELSE block structure
  • Extra or misplaced characters between IF condition and THEN keyword
  • Incorrect line break or statement separator within conditional statement
  • Using incompatible conditional syntax from different programming languages

Troubleshooting Steps

  1. 1Open the KRL source file indicated in the error message and locate the line number where the error occurs
  2. 2Find the IF statement and verify that THEN keyword is present immediately after the conditional expression
  3. 3Check that the IF condition is properly closed with parentheses before the THEN keyword
  4. 4Ensure proper spacing and syntax: IF <condition> THEN <statement> format
  5. 5Review the entire IF...THEN...ELSE...ENDIF block for structural integrity and proper nesting
  6. 6Recompile the program after correcting the syntax to verify the error is resolved

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