Question Failed to load dll - UWP - Dll path duplicated

Hi,
I'm importing a native DLL (compiled in aarch64 release mode with make) that I import in Unity for ARM64 (Hololens2 with UWP), with the right parameters in the inspector.
On the Hololens, the dll is placed in :

C:/Data/Users/DefaultAccount/AppData/Local/DevelopmentFiles/Template3DVS.Release_ARM64.immersion/AprilTagARM64.dll 

But when I run it I got the error :
The Dll fails to load : Failed to load : '

C:/Data/Users/DefaultAccount/AppData/Local/DevelopmentFiles/Template3DVS.Release_ARM64.immersion/C:/Data/Users/DefaultAccount/AppData/Local/DevelopmentFiles/Template3DVS.Release_ARM64.immersion/AprilTagARM64.dll.dll', expected ARM64 architecture, but was Unknown architecture. You must recompile your plugin for ARM64 architecture

.

As you can see the path to the dll is duplicated, so I presume the dll is not find by Unity, of course there is no dll placed in the (duplicated) path described by the error... Does anyone has an idea ?

Thank you.

 

I forgot to mention that with another dll compiled with Visual studio (same ARM64), the dll is placed in the same folder and Unity find this one (even when there is an error, the path is correct). I call them with :

Code (CSharp):

1. [DllImport("DllName", EntryPoint = "entry"]
2. static extern void Test();

So you think that the problem comes from the dll which has an Unknown architecture ?

 

I used aarch64-linux-gcc but I guess that it is not compatible with UWP ...