Exception while using GDAL in C#

Question

I started to use gdal_csharp dll in my application and read a geotiff file. but it says:

The type initializer for 'OSGeo.GDAL.GdalPINVOKE' threw an exception.

it's my code

string fileName = @"/path to geotiff file";

OSGeo.GDAL.Dataset DS = 
    OSGeo.GDAL.Gdal.Open(fileName, OSGeo.GDAL.Access.GA_ReadOnly);

can anyone help?

Edit:

I have these dlls

This is the full error message:

It says that cannot load gdal_wrap. But when I'm going to add that dll to my application the below message is shown:

Answer 1

As an update to this there is now GDAL maintained by the SharpMap team as a nuget package here which is updated regularly. You'll need to install both the "GDAL.Native" and "GDAL" package for your project to use the GDAL library. Once installed via nuget, they'll automatically create a "GdalConfiguration.cs" that you call into to initialize the GDAL paths before starting. The only thing to note is the packages are setup to automatically copy their appropriate GDAL libraries to your output build directory. If you need to deploy the application you'll have to do a bit of extra effort.