Failed to load nodelet '/EstimatorNodelet

[kukulinxin]

Hello, I'm also having the issue of Failed to load nodelet '/EstimatorNodelet of type vins_estimator/EstimatorNodelet to manager nodelet_manager_pc', but since I'm deploying on NVIDIA NX, NX uses the SDK Manager comes with OpenCV4 when it is installed, and OpenCV is not installed when ROS-MELODIC is installed, so it is not possible to specify OpenCV that comes with ROS as usual. What I want to ask is: what is the specific reason why the node cannot be loaded?Can I download OpenCV 3.2.0 and compile it (the version that comes with Ros-Melodic) and modify it in the cv_bridge? Thank you.