![arcgis desktop - ArcMap Field Calculator gives ERROR 999999 - Geographic Information Systems Stack Exchange arcgis desktop - ArcMap Field Calculator gives ERROR 999999 - Geographic Information Systems Stack Exchange](https://i.stack.imgur.com/DUxYJ.png)
arcgis desktop - ArcMap Field Calculator gives ERROR 999999 - Geographic Information Systems Stack Exchange
![Error: 999999: Error executing function. The value type is incompatible with the field type. Failed to execute (CalculateField) Error: 999999: Error executing function. The value type is incompatible with the field type. Failed to execute (CalculateField)](https://s3-us-west-2.amazonaws.com/ist-app-support-files/000015070/00N39000003LL2C-0EM39000000JRpg.png)
Error: 999999: Error executing function. The value type is incompatible with the field type. Failed to execute (CalculateField)
![Error: 999999: Error executing function. The value type is incompatible with the field type. Failed to execute (CalculateField) Error: 999999: Error executing function. The value type is incompatible with the field type. Failed to execute (CalculateField)](https://s3-us-west-2.amazonaws.com/ist-app-support-files/000015070/00N39000003LL2C-0EM39000000JRon.png)
Error: 999999: Error executing function. The value type is incompatible with the field type. Failed to execute (CalculateField)
![Error: 999999: Error executing function. The value type is incompatible with the field type. Failed to execute (CalculateField) Error: 999999: Error executing function. The value type is incompatible with the field type. Failed to execute (CalculateField)](https://s3-us-west-2.amazonaws.com/ist-app-support-files/000015070/00N39000003LL2C-0EM39000000JRpv.png)
Error: 999999: Error executing function. The value type is incompatible with the field type. Failed to execute (CalculateField)
![Error: 999999: Error executing function. The value being added to the CodedValueDomain already exists Error: 999999: Error executing function. The value being added to the CodedValueDomain already exists](https://s3-us-west-2.amazonaws.com/ist-app-support-files/000014041/00N39000003LL24-0EM39000000M8t5.png)
Error: 999999: Error executing function. The value being added to the CodedValueDomain already exists
![Error: 999999: Error executing function. The value type is incompatible with the field type. Failed to execute (CalculateField) Error: 999999: Error executing function. The value type is incompatible with the field type. Failed to execute (CalculateField)](https://s3-us-west-2.amazonaws.com/ist-app-support-files/000015070/00N39000003LL2C-0EM39000000JRoi.png)
Error: 999999: Error executing function. The value type is incompatible with the field type. Failed to execute (CalculateField)
![User defined parameter within code block of field calculator - Modelbuilder - ArcGIS - Python - Geographic Information Systems Stack Exchange User defined parameter within code block of field calculator - Modelbuilder - ArcGIS - Python - Geographic Information Systems Stack Exchange](https://i.stack.imgur.com/xE0OK.jpg)
User defined parameter within code block of field calculator - Modelbuilder - ArcGIS - Python - Geographic Information Systems Stack Exchange
![Populating new field based on existing string field using ArcGIS Field Calculator? - Geographic Information Systems Stack Exchange Populating new field based on existing string field using ArcGIS Field Calculator? - Geographic Information Systems Stack Exchange](https://i.stack.imgur.com/pPwvS.jpg)