OpenCV Error: Bad argument (Invalid pointer to file storage) in cvGetRootFileNode

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#1

Hi all, I am using Ubuntu 18.04 and my OpenCV version is 4.1.1. When I want to roslaunch I get the error like this:

OpenCV Error: Bad argument (Invalid pointer to file storage) in cvGetRootFileNode, file /build/opencv-XDqSFW/opencv-3.2.0+dfsg/modules/core/src/persistence.cpp, line 926
terminate called after throwing an instance of 'cv::Exception'
  what():  /build/opencv-XDqSFW/opencv-3.2.0+dfsg/modules/core/src/persistence.cpp:926: error: (-5) Invalid pointer to file storage in function cvGetRootFileNode

Does anyone know how to solve this error?

#2

Hi,
I’m sorry for not being much help on this, but you might also want to check if there’s similar question in ROS Answers.

#3

Is ok, thank you Will

#4

Hi, what did you do to solve this problem?