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Message type: E = Error
Message class: SALV_X_API - Messages for ALV API exceptions
Message number: 138
Message text: Illegal node specified: Node is initial
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SALV_X_API138
- Illegal node specified: Node is initial ?The SAP error message SALV_X_API138: Illegal node specified: Node is initial typically occurs when working with the SAP ALV (ABAP List Viewer) framework, particularly when trying to manipulate or access nodes in an ALV hierarchy that have not been properly initialized or populated.
Cause:
- Uninitialized Node: The error indicates that the node you are trying to access or manipulate is not initialized. This can happen if you attempt to reference a node that has not been created or populated with data.
- Incorrect Node Reference: You may be trying to access a node that does not exist in the context of the ALV hierarchy.
- Data Retrieval Issues: If the data retrieval process fails or returns no data, the nodes may not be created, leading to this error when you try to access them.
Solution:
- Check Node Initialization: Ensure that the node you are trying to access is properly initialized. You can do this by checking the code where the node is created and populated.
- Verify Data Retrieval: Make sure that the data retrieval logic is functioning correctly and that it returns the expected results. If the data is not being fetched correctly, the nodes will not be created.
- Debugging: Use debugging tools to step through the code and check the state of the nodes at runtime. This can help identify where the node is not being initialized.
- Error Handling: Implement error handling to check if the node is initial before trying to access it. This can prevent the error from occurring and allow for graceful handling of the situation.
- Review ALV Configuration: Ensure that the ALV configuration is set up correctly, including any settings related to hierarchy or node management.
Related Information:
By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.
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