KUKA Robot codes
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KUKA Robot Controller

System · Basic

Alarm KRC1031

KUKA Robot KRC1031 - INTERNAL COMPILER ERROR <object name> 2801

An internal compiler error occurred while processing the specified KRL program object during compilation. This indicates a critical failure in the KUKA KRC compiler when parsing, analyzing, or generating code for the named module, function, or variable. Error code 2801 suggests a structural or syntax issue that the compiler cannot resolve.

KUKA RobotSystemBasic

KRC1031

KUKA Robot KRC1031 - INTERNAL COMPILER ERROR <object name> 2801

INTERNAL COMPILER ERROR <object name> 2801

An internal compiler error occurred while processing the specified KRL program object during compilation. This indicates a critical failure in the KUKA KRC compiler when parsing, analyzing, or generating code for the named module, function, or variable. Error code 2801 suggests a structural or syntax issue that the compiler cannot resolve.

Common Causes

  • Syntax errors or malformed declarations in the KRL source code of the specified object
  • Invalid variable types, array dimensions, or parameter definitions
  • Circular dependencies or unresolved references between program objects
  • Corrupted or incomplete KRL file with missing brackets, semicolons, or control structure elements
  • Incompatibility between the KRL code and the current KRC software version

Troubleshooting Steps

  1. 1Identify the specific object name from the alarm message and open its source code in the KRC editor
  2. 2Review the syntax of variable declarations, function signatures, and control structures for errors
  3. 3Check for missing or mismatched brackets, semicolons, and proper indentation throughout the object
  4. 4Verify that all referenced variables and functions are properly declared and within scope
  5. 5Delete any temporary or backup files (.bak) in the project and perform a full clean rebuild of the program
  6. 6If the issue persists, reload the project from a known working version or contact KUKA support with the complete source code and KRC software version information

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