KUKA Robot codes
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KUKA Robot Controller

System · Basic

Alarm KRC0479

KUKA Robot KRC0479 - Line compilation or decompilation error

KRC0479 indicates a compilation or decompilation error has occurred during the processing of robot program source code or intermediate code files. This error typically manifests when the KRC controller attempts to translate program files between source code and executable binary formats, or vice versa, and encounters syntax errors, corrupted files, or incompatible code structures.

KUKA RobotSystemBasic

KRC0479

KUKA Robot KRC0479 - Line compilation or decompilation error

Line compilation or decompilation error

KRC0479 indicates a compilation or decompilation error has occurred during the processing of robot program source code or intermediate code files. This error typically manifests when the KRC controller attempts to translate program files between source code and executable binary formats, or vice versa, and encounters syntax errors, corrupted files, or incompatible code structures.

Common Causes

  • Corrupted or incomplete source code file (.src) or compiled file (.dat)
  • Syntax errors in KRL (KUKA Robot Language) program structure or declarations
  • Mismatched or missing variable type declarations and incompatible data types
  • Program file edited with incompatible editor or contains invalid character encoding
  • Controller firmware version incompatibility with compiled program format

Troubleshooting Steps

  1. 1Verify the program file integrity by checking file size and creation date against known good backups
  2. 2Open the source code file in KUKA WorkVisual or KRC IDE and review for syntax errors or highlighted code issues
  3. 3Clear the compiled program cache by deleting corresponding .dat files from the controller's program directory and allow recompilation
  4. 4Validate the program syntax by attempting to compile in the development environment before loading to the controller
  5. 5Confirm the controller firmware version matches the program compilation target version and update if necessary
  6. 6If error persists, restore the program from a known working backup or recreate the program in the current WorkVisual environment

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