java.lang.UnsatisfiedLinkError: no jniopencv_core in java.library.path

[kevinTveizaga]

Hi,

I just started working with images so i wanted to use this library but i am having this error:

--- exec-maven-plugin:1.2.1:exec (default-cli) @ SDPC ---
Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: no jniopencv_core in java.library.path
	at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1867)
	at java.lang.Runtime.loadLibrary0(Runtime.java:870)
	at java.lang.System.loadLibrary(System.java:1122)
	at org.bytedeco.javacpp.Loader.loadLibrary(Loader.java:1258)
	at org.bytedeco.javacpp.Loader.load(Loader.java:999)
	at org.bytedeco.javacpp.Loader.load(Loader.java:891)
	at org.bytedeco.javacpp.opencv_core.<clinit>(opencv_core.java:10)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:348)
	at org.bytedeco.javacpp.Loader.load(Loader.java:950)
	at org.bytedeco.javacpp.Loader.load(Loader.java:891)
	at org.bytedeco.javacpp.helper.opencv_core$AbstractArray.<clinit>(opencv_core.java:109)
	at modelo.ProcesadorDeImagenes.analizar(ProcesadorDeImagenes.java:35)
	at controlador.AccionAnalizar.actionPerformed(AccionAnalizar.java:36)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:289)
	at java.awt.Component.processMouseEvent(Component.java:6533)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
	at java.awt.Component.processEvent(Component.java:6298)
	at java.awt.Container.processEvent(Container.java:2236)
	at java.awt.Component.dispatchEventImpl(Component.java:4889)
	at java.awt.Container.dispatchEventImpl(Container.java:2294)
	at java.awt.Component.dispatchEvent(Component.java:4711)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
	at java.awt.Container.dispatchEventImpl(Container.java:2280)
	at java.awt.Window.dispatchEventImpl(Window.java:2746)
	at java.awt.Component.dispatchEvent(Component.java:4711)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.awt.EventQueue$3.run(EventQueue.java:703)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
	at java.awt.EventQueue$4.run(EventQueue.java:731)
	at java.awt.EventQueue$4.run(EventQueue.java:729)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: java.lang.UnsatisfiedLinkError: C:\Users\Kevo\.javacpp\cache\opencv-3.4.3-1.4.3-windows-x86_64.jar\org\bytedeco\javacpp\windows-x86_64\jniopencv_core.dll: Can't find dependent libraries
	at java.lang.ClassLoader$NativeLibrary.load(Native Method)
	at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1941)
	at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1824)
	at java.lang.Runtime.load0(Runtime.java:809)
	at java.lang.System.load(System.java:1086)
	at org.bytedeco.javacpp.Loader.loadLibrary(Loader.java:1238)
	... 47 more

as you can see i added the dependency just as it says in the README file.
perhaps i missed some extra configuration i read all the similar issues but they seem to be out of date, even i have tried some of them but i am still having the issue

I am working with Netbeans 8.2
OS: Windows 7
Maven version: 3.6.0

Thanks in advance.

[saudet]

It says something is missing from your system, could you find out what it is?
https://github.com/bytedeco/javacpp-presets/wiki/Debugging-UnsatisfiedLinkError-on-Windows

[kevinTveizaga]

thanks saudet for the reply,
I have tried to run that Dependencies tool but since my OS version is relatively old i could not open it, so i did install Dependency Walker, that one worked very well,

this is what i get when i run it. Im not sure but it looks like the missing dependency is my Ucrtbase.dll, acording to what i found about it is related to the OS files.
My windows version

I have sought for a "replace" but i did not found any UCRTBASE.dll for windows 7. So i am going to try again on a different Windows version.

[saudet]

Thanks for checking this out! I've fixed this in commit bytedeco/javacpp-presets@26de6ef, but please try with the snapshots to make sure nothing else is broken: http://bytedeco.org/builds/

[kevinTveizaga]

hi @saudet,
thank you very much, i will try the snaps. The issue is not present in windows 10 by the way.

[saudet]

The fix is now included with version 1.4.4. Thanks for reporting and for testing!

[ipapagi]

Exactly the same behavior I have with the versions 1.5.6 and 1.5.7 again in windows 7 but not in windows 10 and in linux. If I use the 1.4.4 the link error is disappeared. Please could you check it?

[saudet]

It looks like newer versions of OpenCV and/or Visual Studio won't build binaries that work on Windows 7 anymore.
For that, try to build from source on your machine: https://github.com/bytedeco/javacpp-presets#build-instructions

[ipapagi]

Thank you for your answer. I'll do it!