What are the potential reasons for receiving a 'cannot return null for non-nullable field query' error in the context of cryptocurrency?

3 answers

• Leon632Nov 27, 2021 · 5 years ago
  One potential reason for receiving a 'cannot return null for non-nullable field query' error in the context of cryptocurrency is when the requested data is not available in the database. This can happen if there is a problem with the data source or if the data has not been properly synced. To resolve this issue, you can try refreshing the data or contacting the data provider for assistance.
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• Batuhan SaylamJul 23, 2025 · 10 months ago
  Sometimes, this error occurs when there is a mismatch between the expected data type and the actual data being returned. It could be that the query is expecting a non-null value, but the data being returned is null. To fix this, you can check the query and make sure that the data being returned matches the expected data type.
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• Kevin UrbanczykFeb 11, 2022 · 4 years ago
  In the context of cryptocurrency, the 'cannot return null for non-nullable field query' error can also occur if there is an issue with the smart contract or blockchain protocol being used. This error may indicate a bug or inconsistency in the code, and it may require a deeper investigation to identify and fix the root cause. If you are using BYDFi, you can reach out to their support team for assistance in resolving this error.
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