Problem-solving is crucial for Power BI developers as they often need to tackle complex data challenges. Whether it’s fixing performance issues, resolving data discrepancies, or finding ways to display complex information clearly, developers must think critically and find solutions. Effective problem-solving enables developers to optimize reports, streamline data models, and ensure that data is presented accurately and meaningfully. It also helps in troubleshooting integration issues, data refresh errors, and other technical hurdles that arise during the development process.