Unable to upload "opencv_core242" after adding the files to application output directory

Unable to upload "opencv_core242" after adding the files to application
output directory

I am new to Emgu CV in C# and when I tried to set it up on my 64-bit
laptop, I added the required EmguCV .dll files as reference and the
related opencv .dll files to the project or put the opencv .dll files to
bin/debug folder in my project folder, I got the following error (I've
changed my targeted platform to x64 and downloaded the x64 package):
System.TypeInitializationException was unhandled
HResult=-2146233036
Message=The type initializer for 'Emgu.CV.CvInvoke' threw an exception.
Source=Emgu.CV
TypeName=Emgu.CV.CvInvoke
InnerException: System.DllNotFoundException
HResult=-2146233052
Message=Unable to load DLL 'opencv_core242': The specified module
could not be found. (Exception from HRESULT: 0x8007007E)
Source=Emgu.CV
TypeName=""
StackTrace:
at Emgu.CV.CvInvoke.cvRedirectError(CvErrorCallback
errorHandler, IntPtr userdata, IntPtr prevUserdata)
at Emgu.CV.CvInvoke..cctor()
InnerException:
I've been stuck to this for a few days and really appreciate any help.
Thank you.