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No, you can't directly run ROS 1 nodes in ROS 2, ROS 2 is a complete rewrite without built-in backwards compatibility with ROS 1. A quick search would have pointed you to the comprehensive migration guide:

https://docs.ros.org/en/foxy/Contributing/Migration-Guide.html

Having said that, you could run ROS 1 nodes next to ROS 2 using the ROS 1 bridge