unable cast string to object

[mehliaeb]

DesiredCapabilities capabilities = DesiredCapabilities.Chrome();

ChromeOptions options = new ChromeOptions();

options.AddArguments("test-type");

options.BinaryLocation = @"C:\Users\ebrahimpour.l\Documents\Visual Studio 2015\Projects\FirstPackage\FirstPackage\bin\Debug\  chro‌​medriver.exe";



capabilities.SetCapability("chrome.binary", @"C:\Users\ebrahimpour.l\Documents\Visual Studio 2015\Projects\FirstPackage\FirstPackage\bin\Debug\  chro‌​medriver.exe");

capabilities.SetCapability(ChromeOptions.Capabilit  y, options);



System.Environment.SetEnvironmentVariable("webdriv  er.chrome.‌​driver", @"C:\Users\ebrahimpour.l\Documents\Visual Studio 2015\Projects\FirstPackage\FirstPackage\bin\Debug\  chro‌​medriver.exe");



driver = new ChromeDriver(@"C:\Users\ebrahimpour.l\Documents\Vi  sual Studio 2015\Projects\FirstPackage\FirstPackage\bin\Debug"  );



capabilities.SetCapability( capabilities.Platform.ProtocolPlatformType, "WebDriver");

capabilities.SetCapability( CapabilityType.BrowserName, "chrome");

capabilities.SetCapability( capabilities.Version, "57");

capabilities.SetCapability( CapabilityType.Platform, "WinNT");

capabilities.SetCapability( ChromeOptions.Capability, options);



RemoteWebDriver rw = new RemoteWebDriver(new Uri("http://localhost:4444/grid/console"), capabilities);

driver = rw;

baseURL = "http://192.168.10.173:8080/";

verificationErrors = new StringBuilder();

error:
it is what resharper give me about error "OneTimeSetUp: System.InvalidCastException : Unable to cast object of type 'System.String' to type 'System.Collections.Generic.Dictionary`2[System.String,Syste‌​m.Object]'. Exception doesn't have a stacktrace "