Fix null pointer error - #1500
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Fix null pointer error Error messages： Unhandled exception. System.TypeInitializationException: The type initializer for 'OpenCvSharp.Internal.NativeMethods' threw an exception. ---> System.DllNotFoundException: Unable to load shared library 'OpenCvSharpExtern' or one of its dependencies. In order to help diagnose loading problems, consider setting the LD_DEBUG environment variable: libOpenCvSharpExtern: cannot open shared object file: No such file or directory at OpenCvSharp.Internal.NativeMethods.redirectError(CvErrorCallback errCallback, IntPtr userdata, IntPtr& prevUserdata) at OpenCvSharp.Internal.ExceptionHandler.RegisterExceptionCallback() at OpenCvSharp.Internal.NativeMethods.LoadLibraries(IEnumerable`1 additionalPaths) at OpenCvSharp.Internal.NativeMethods..cctor() --- End of inner exception stack trace --- at OpenCvSharp.Internal.NativeMethods.videoio_VideoCapture_delete(IntPtr obj) at OpenCvSharp.VideoCapture.DisposeUnmanaged() at OpenCvSharp.DisposableObject.Dispose(Boolean disposing) at OpenCvSharp.DisposableObject.Finalize()
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This was referenced Jan 16, 2026
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Fix null pointer error
Error messages：
Unhandled exception. System.TypeInitializationException: The type initializer for 'OpenCvSharp.Internal.NativeMethods' threw an exception.
---> System.DllNotFoundException: Unable to load shared library 'OpenCvSharpExtern' or one of its dependencies. In order to help diagnose loading problems, consider setting the LD_DEBUG environment variable: libOpenCvSharpExtern: cannot open shared object file: No such file or directory
at OpenCvSharp.Internal.NativeMethods.redirectError(CvErrorCallback errCallback, IntPtr userdata, IntPtr& prevUserdata)
at OpenCvSharp.Internal.ExceptionHandler.RegisterExceptionCallback()
at OpenCvSharp.Internal.NativeMethods.LoadLibraries(IEnumerable`1 additionalPaths)
at OpenCvSharp.Internal.NativeMethods..cctor()
--- End of inner exception stack trace ---
at OpenCvSharp.Internal.NativeMethods.videoio_VideoCapture_delete(IntPtr obj)
at OpenCvSharp.VideoCapture.DisposeUnmanaged()
at OpenCvSharp.DisposableObject.Dispose(Boolean disposing)
at OpenCvSharp.DisposableObject.Finalize()