How To Fix FDT_EXPRESSIONS174 - Invalid row index; row index can not be 0

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 174

• Message text: Invalid row index; row index can not be 0

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS174 - Invalid row index; row index can not be 0 ?

  The SAP error message FDT_EXPRESSIONS174: Invalid row index; row index cannot be 0 typically occurs in the context of SAP Fiori or SAP UI5 applications, particularly when dealing with data binding and table controls. This error indicates that there is an attempt to access a row in a table or data structure using an index that is invalid, specifically an index of 0, which is not allowed in this context.
  Cause:
  
  Zero-Based Indexing: In many programming languages and frameworks, including JavaScript (which is used in SAP UI5), arrays and lists are zero-indexed. However, certain SAP UI5 controls may expect a one-based index or may not allow accessing the first row with an index of 0.
  Data Binding Issues: If the data binding is not set up correctly, or if the data source is empty or not properly initialized, the application may attempt to access a row that does not exist.
  Incorrect Logic in Code: There may be a logical error in the code where the index is being calculated or passed incorrectly, leading to an attempt to access a non-existent row.
  
  Solution:
  
  Check Data Binding: Ensure that the data binding for the table or control is correctly set up and that the data source is populated with the expected data. Verify that the model is correctly initialized and bound to the view.
  Validate Index Usage: Review the code where the index is being used. Ensure that the index is being calculated correctly and that it does not attempt to access a row that does not exist. For example, if you are iterating over an array, make sure the loop does not attempt to access an index that is out of bounds.
  Debugging: Use debugging tools to inspect the values of the index and the data being accessed at runtime. This can help identify where the invalid index is being generated.
  Error Handling: Implement error handling to gracefully manage situations where the data may not be available or the index is invalid. This can prevent the application from crashing and provide a better user experience.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Fiori and UI5 for best practices on data binding and handling table controls.
  Community Forums: Check SAP Community forums or Stack Overflow for similar issues and solutions shared by other developers.
  SAP Notes: Look for any relevant SAP Notes that may address this specific error or provide patches or updates that could resolve the issue.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to prevent it from occurring in your SAP application.