Upgrade to Azure Search .NET SDK version 2.0/3.0

[aamruta]

Getting below error

'AzureSearchOCR.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_32\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Users\eoz4sm1\Downloads\AzureSearchOCR-master\AzureSearchOCR-master\AzureSearchOCR\AzureSearchOCR\bin\Debug\AzureSearchOCR.exe'. Symbols loaded.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Users\eoz4sm1\Downloads\AzureSearchOCR-master\AzureSearchOCR-master\AzureSearchOCR\AzureSearchOCR\bin\Debug\Microsoft.Azure.Search.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Users\eoz4sm1\Downloads\AzureSearchOCR-master\AzureSearchOCR-master\AzureSearchOCR\AzureSearchOCR\bin\Debug\Microsoft.Rest.ClientRuntime.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Net.Http\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Net.Http.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Users\eoz4sm1\Downloads\AzureSearchOCR-master\AzureSearchOCR-master\AzureSearchOCR\AzureSearchOCR\bin\Debug\Microsoft.Rest.ClientRuntime.Azure.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Users\eoz4sm1\Downloads\AzureSearchOCR-master\AzureSearchOCR-master\AzureSearchOCR\AzureSearchOCR\bin\Debug\Newtonsoft.Json.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Net.Http.WebRequest\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Net.Http.WebRequest.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Users\eoz4sm1\Downloads\AzureSearchOCR-master\AzureSearchOCR-master\AzureSearchOCR\AzureSearchOCR\bin\Debug\Microsoft.ProjectOxford.Vision.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Runtime\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Runtime.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Threading.Tasks\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Threading.Tasks.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Numerics\v4.0_4.0.0.0__b77a5c561934e089\System.Numerics.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Serialization\v4.0_4.0.0.0__b77a5c561934e089\System.Runtime.Serialization.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Users\eoz4sm1\Downloads\AzureSearchOCR-master\AzureSearchOCR-master\AzureSearchOCR\AzureSearchOCR\bin\Debug\itextsharp.dll'. Module was built without symbols.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Net.Primitives\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Net.Primitives.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.IO\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.IO.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Net.Requests\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Net.Requests.dll'. Cannot find or open the PDB file.
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Text.Encoding\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Text.Encoding.dll'. Cannot find or open the PDB file.
Exception thrown: 'System.Net.WebException' in System.dll
Exception thrown: 'System.Net.WebException' in System.dll
Exception thrown: 'System.AggregateException' in mscorlib.dll
Exception thrown: 'Microsoft.ProjectOxford.Vision.ClientException' in Microsoft.ProjectOxford.Vision.dll
Exception thrown: 'Microsoft.ProjectOxford.Vision.ClientException' in mscorlib.dll
Exception thrown: 'System.AggregateException' in mscorlib.dll
'AzureSearchOCR.exe' (CLR v4.0.30319: AzureSearchOCR.exe): Loaded 'C:\Downloads\AzureSearchOCR-master\AzureSearchOCR-master\AzureSearchOCR\AzureSearchOCR\bin\Debug\Microsoft.Spatial.dll'. Cannot find or open the PDB file.
The program '[7324] AzureSearchOCR.exe' has exited with code -1073741510 (0xc000013a).