I am unable to create index in Azure AI search using C#

I have followed below git repo to create index in Azure AI Search (Line 231 - 307) https://github.com/Azure/azure-search-vector-samples/blob/main/demo-dotnet/DotNetVectorDemo/Program.cs
I am not using SemanticSearch so removed code from Line 266 - 283

Below is the code

public static async Task Main(string[] args)

{

SetUpIndex();

}

public static async Task SetUpIndex()

{

const string vectorSearchHnswProfile = "my-vector-profile";

const string vectorSearchHnswConfig = "myHnsw";

const string vectorSearchVectorizer = "myOpenAIVectorizer";

const string semanticSearchConfig = "my-semantic-config";

const string indexName = "my-demo-index-dummyindex";

const string AzureOpenAIEmbeddingDimensions = "1024";

try

{

    Console.WriteLine("Initializing Azure Search Service");

    SearchIndexClient indexclient = new SearchIndexClient(new Uri(searchServiceEndpoint), new AzureKeyCredential(searchApiKey));

//passing searchServiceEndpoint and key in searchApiKey

    Console.WriteLine("Connected to Azure AI Search");

    SearchIndex searchIndex = new(indexName)

    {

        VectorSearch = new()

        {

            Profiles =

        {

            new VectorSearchProfile(vectorSearchHnswProfile, vectorSearchHnswConfig)

            {

                VectorizerName = vectorSearchVectorizer

            }

        },

            Algorithms =

            {

                new HnswAlgorithmConfiguration(vectorSearchHnswConfig)

            },

            Vectorizers =

            {

            new AzureOpenAIVectorizer(vectorSearchVectorizer)

            {

                Parameters = new AzureOpenAIVectorizerParameters

                {

                    ResourceUri = new Uri(openaiApiBase), // Azure Open AI endpoint

                    ApiKey = openaiApiKey, //Azure open AI Key 

                    ModelName = deploymentName, // using text-embedding-3-large model for embedding

                    DeploymentName = deploymentName

                }

            }

            },

        },

        Fields =

    {

        new SimpleField("id", SearchFieldDataType.String) { IsKey = true, IsFilterable = true, IsSortable = true, IsFacetable = true },

        new SearchableField("title") { IsFilterable = true, IsSortable = true },

        new SearchableField("content") { IsFilterable = true, IsSortable = true },

        new SearchField("contentVector", SearchFieldDataType.Collection(SearchFieldDataType.Single))

        {

            IsSearchable = true,

            VectorSearchDimensions = int.Parse(AzureOpenAIEmbeddingDimensions),

            VectorSearchProfileName = vectorSearchHnswProfile

        },

        new SearchableField("category") { IsFilterable = true, IsSortable = true, IsFacetable = true }

    }

    };

    Console.WriteLine(searchIndex.Name.ToString());

    Console.WriteLine("Creating Index");

    //await indexclient.CreateIndexAsync(searchIndex); //first tried with this, its not working

    await indexclient.CreateOrUpdateIndexAsync(searchIndex);

    Console.WriteLine($"Index created successfully {indexName}");

}

catch (RequestFailedException ex)

{

    Console.WriteLine($"Error creating index: {ex.Message}");

}

catch (Exception ex)

{

    Console.WriteLine($"Error creating index: {ex.Message}");

}

}

The code is not even throwing any errors or exceptions. It's printing Console.WriteLine("Creating Index"); on console but when entering await indexclient.CreateOrUpdateIndexAsync(searchIndex); program is simply terminating. No exception is being thrown or printed on the console. Any support on this issue is very helpful.