sharpgl 无法调用扩展函数 glShaderSource

尝试使用 sharpgl 创建着色器时，我收到以下异常

System.Exception: Cannot invoke extension function glShaderSource ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentException: Cannot marshal: Encountered unmappable character.
   at System.StubHelpers.MngdNativeArrayMarshaler.ConvertContentsToNative(IntPtr pMarshalState, Object& pManagedHome, IntPtr pNativeHome)
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
   at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
   at System.Delegate.DynamicInvokeImpl(Object[] args)
   at System.Delegate.DynamicInvoke(Object[] args)
   at SharpGL.OpenGL.InvokeExtensionFunction[T](Object[] args) in c:'Repositories'GitHub'sharpgl'source'SharpGL'Core'SharpGL'OpenGLExtensions.cs:line 66
   --- End of inner exception stack trace ---
   at SharpGL.OpenGL.InvokeExtensionFunction[T](Object[] args) in c:'Repositories'GitHub'sharpgl'source'SharpGL'Core'SharpGL'OpenGLExtensions.cs:line 70
   at SharpGL.OpenGL.ShaderSource(UInt32 shader, String source) in c:'Repositories'GitHub'sharpgl'source'SharpGL'Core'SharpGL'OpenGLExtensions.cs:line 1296
   at SharpGL.Shaders.Shader.Create(OpenGL gl, UInt32 shaderType, String source) in c:'Repositories'GitHub'sharpgl'source'SharpGL'Core'SharpGL'Shaders'Shader.cs:line 20
   at SharpGL.Shaders.ShaderProgram.Create(OpenGL gl, String vertexShaderSource, String fragmentShaderSource, Dictionary`2 attributeLocations) in c:'Repositories'GitHub'sharpgl'source'SharpGL'Core'SharpGL'Shaders'ShaderProgram.cs:line 26

我目前使用的代码是

 try
 {
     // Create the shader program.
     var vertexShaderSource = @"#version 150 core
in vec3 in_Position;
in vec3 in_Color;
out vec3 pass_Color;
uniform mat4 projectionMatrix;
uniform mat4 viewMatrix;
uniform mat4 modelMatrix;
void main(){gl_Position = projectionMatrix * viewMatrix * modelMatrix * vec4(in_Position, 1.0);pass_Color = in_Color;}";
     var fragmentShaderSource = @"#version 150 core
in vec3 pass_Color;
out vec4 out_Color;
void main(void){ out_Color = vec4(pass_Color, 1.0); }";
     shaderProgram = new ShaderProgram();
     shaderProgram.Create(gl, vertexShaderSource, fragmentShaderSource, null); // <- exception
     shaderProgram.BindAttributeLocation(gl, attributeIndexPosition, "in_Position");
     shaderProgram.BindAttributeLocation(gl, attributeIndexColour, "in_Color");
     shaderProgram.AssertValid(gl);
}
catch (Exception e)
{
    System.Diagnostics.Debug.Write( e.ToString() );
}

例外情况在shaderProgram.Create行上。删除或缩小着色器源字符串时，不会发生错误，但着色器将无法编译，并且我收到Failed to compile shader with ID 2.错误。我还在源代码中找到了异常来自的位置，但不知道如何解决此问题或实际原因是什么。