Invalid integer number in feature: '{0}'

 
 
Error:
Invalid integer getal in feature: '{0}'.
 
Explanation:
If the import file contains one or more columns Article Index, Sub-group index and HeaderIndex1..X with a value, the value in those columns must be a positive integer. If not, this error message will appear. The system is then unable to index.
 
Solution:
Replace the incorrect index notations with positive integers and then import again.