{"action":"opened","issue":{"url":"https://api.github.com/repos/bytedeco/javacv/issues/102","labels_url":"https://api.github.com/repos/bytedeco/javacv/issues/102/labels{/name}","comments_url":"https://api.github.com/repos/bytedeco/javacv/issues/102/comments","events_url":"https://api.github.com/repos/bytedeco/javacv/issues/102/events","html_url":"https://github.com/bytedeco/javacv/issues/102","id":60899677,"number":102,"title":"Demo application from README does not work","user":{"login":"vlad-aleksandrov","id":1421256,"avatar_url":"https://avatars.githubusercontent.com/u/1421256?v=3","gravatar_id":"","url":"https://api.github.com/users/vlad-aleksandrov","html_url":"https://github.com/vlad-aleksandrov","followers_url":"https://api.github.com/users/vlad-aleksandrov/followers","following_url":"https://api.github.com/users/vlad-aleksandrov/following{/other_user}","gists_url":"https://api.github.com/users/vlad-aleksandrov/gists{/gist_id}","starred_url":"https://api.github.com/users/vlad-aleksandrov/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/vlad-aleksandrov/subscriptions","organizations_url":"https://api.github.com/users/vlad-aleksandrov/orgs","repos_url":"https://api.github.com/users/vlad-aleksandrov/repos","events_url":"https://api.github.com/users/vlad-aleksandrov/events{/privacy}","received_events_url":"https://api.github.com/users/vlad-aleksandrov/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-03-12T20:53:05Z","updated_at":"2015-03-12T20:53:05Z","closed_at":null,"body":"Demo app throws exception:\r\n````\r\nOpenCV Error: Unspecified error (The node does not represent a user object (unknown type?)) in cvRead, file /home/saudet/projects/bytedeco/javacpp-presets/opencv/cppbuild/linux-x86_64/opencv-2.4.10/modules/core/src/persistence.cpp, line 4991\r\nException in thread \"main\" java.lang.RuntimeException: /home/saudet/projects/bytedeco/javacpp-presets/opencv/cppbuild/linux-x86_64/opencv-2.4.10/modules/core/src/persistence.cpp:4991: error: (-2) The node does not represent a user object (unknown type?) in function cvRead\r\n````\r\nThe reason is  xml classifier format has been changed and 2.4 branch of OpenCV has new format already.  Demo app should be pointed to `2.4.10` tag:\r\n````java\r\nURL url = new URL(\"https://raw.githubusercontent.com/Itseez/opencv/2.4.10/data/haarcascades/haarcascade_frontalface_alt.xml\");\r\n````\r\n"}}