DllNotFoundException in unity3d plugin for c++ dll

Question

I am working on the Unity Plugin project and try to import the c++ native dll from c# file. But I keep getting dllnotfoundexception.

c++ dll code:

Answer 1

Well I got it working. For others who may face this problem, if you have more than one dll, you need to put the secondary dlls at root level of the Unity editor (e.g. C:\Program Files\Unity\Editor) and the actual referenced dll from script into plugins folder. This worked for me.