Getting TypeInitializer error

snehal21692 2018-06-21 18:53:43 UTC #1

Hello, I am configuring VS 2015 for C-sharp and using Leap Motion Controller.

When I downloaded the latest most version of the SDK (4.0), I have LeapC.dll and LeapC.lib files in x64 folder.

I downloaded LeapCSharp.Net4.0.dll from the web and when I run my program I get below error:

An unhandled exception of type 'System.TypeInitializationException' occurred in LeapCSharp.NET4.0.dll

Additional information: The type initializer for 'Leap.LeapPINVOKE' threw an exception.

I am stuck here for a long. Need support please.

AlexColgan 2018-06-22 14:33:10 UTC #2

The old APIs are no longer supported with V4, but there is a new C# wrapper on LeapC you could use: https://developer.leapmotion.com/documentation/v4/index.html

snehal21692 2018-06-22 14:53:06 UTC #3

Thanks Alex for the reply.
That link takes me to download SDK 4.0 which I already have and it only has LeapC.dll inside the /lib/x64 folder.

I had to download LeapCSharp.Net4.0.dll from the web , otherwise I w asn't able to use the "using Leap".But when I run my application now it says -
An unhandled exception of type 'System.TypeInitializationException' occurred in LeapCSharp.NET4.0.dll

Additional information: The type initializer for 'Leap.LeapPINVOKE' threw an exception.

I have include LeapCSharp.Net4.0.dll inside/bin/debug folder of my app.

snehal21692 2018-06-22 14:56:10 UTC #4

Also, the official documentation at : https://developer-archive.leapmotion.com/documentation/csharp/devguide/Project_Setup.html says :

3) Either add the Leap Motion .NET source code from the SDK src folder, or add a reference to one of the pre-built .NET libraries:

Select Project > Add Reference.
In the References dialog, select Browse.
Browse to your Leap Motion SDK folder.
Choose either LeapCSharp.NET3.5.dll, LeapCSharp.NET4.0.dll, or LeapCSharp.NET4.5.dll. Each of these libraries support the full Leap Motion API, but you should choose the one appropriate for the version of .NET you are using in the project.

But there is NO such dll file with 4.0 SDK.

snehal21692 2018-06-22 21:27:24 UTC #5

I was able to get past the issue by downloading SDK version 3.2.

I think LeapMotion have not updated their documentation to show how to work with SDK 4.0. It still shows implementation using SDK 3.2 and there is a lot of difference in SDK 4.0 from 3.2.

Hope you guys update it