How To Fix AXT_MODEL171 - UI component &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: AXT_MODEL -

• Message number: 171

• Message text: UI component &1 already exists

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 AXT_MODEL171 - UI component &1 already exists ?

  The SAP error message AXT_MODEL171, which states "UI component &1 already exists," typically occurs in the context of SAP Fiori or SAP UI5 applications. This error indicates that there is an attempt to create or register a UI component that has already been instantiated or registered in the application.
  
  Cause:
  
  
  Duplicate Component Registration: The error usually arises when the application tries to create a UI component (like a view, controller, or fragment) that has already been instantiated. This can happen due to:
  
  Incorrect coding practices where the same component is being initialized multiple times.
  Issues in the routing configuration that lead to the same component being loaded multiple times.
  Improper handling of component lifecycle events.
  
  
  
  Caching Issues: Sometimes, caching mechanisms can lead to stale references, causing the application to think that a component is already registered.
  
  
  Concurrency Issues: If multiple instances of the same component are being created in a multi-threaded environment, it can lead to this