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Unable to fetch the azure key Vault secret in .net sharepoint application

M R, MEGHA 0 Reputation points
2023-10-17T10:36:39.33+00:00

Whenever I am trying to retrieve the azure key vault secret in .net sharepoint application, I am getting the below exception for the below mentioned code . Tried to update all the nugget packages with the expected version but, still unable to troubleshoot the error. 

if (!string.IsNullOrEmpty(KeyVaultName) && !string.IsNullOrEmpty(KeyVaultSecret) && !string.IsNullOrEmpty(ManagedIdentityClientId))
{
    var kvUri = $"https://{KeyVaultName}.vault.azure.net";

    var options = new DefaultAzureCredentialOptions()
    {
        ManagedIdentityClientId = ManagedIdentityClientId
    };
    var credential = new DefaultAzureCredential(options);

    var client = new SecretClient(new Uri(kvUri), credential);
    var secret = client.GetSecret(KeyVaultSecret);
   string accountPassword = secret.Value.Value;


}

Below is the exception:

System.IO.FileNotFoundException
  HResult=0x80070002
  Message=Could not load file or assembly 'Azure.Identity, Version=1.10.0.0, Culture=neutral, PublicKeyToken=92742159e12e44c8' or one of its dependencies. The system cannot find the file specified.
  Source=ACNAdHocProjectBackup
  StackTrace:
   at ACNAdHocProjectBackup.ACNPSIConfigurator.SetExternalConfigurationData() in D:\MeghaMR\Tools_MSPS2019_ACNAdHocProjectBackup\ACNAdHocProjectBackup\ACNPSIConfigurator.cs:line 453
   at ACNAdHocProjectBackup.ACNPSIConfigurator.ConfigurePSIClients() in D:\MeghaMR\Tools_MSPS2019_ACNAdHocProjectBackup\ACNAdHocProjectBackup\ACNPSIConfigurator.cs:line 102
   at ACNAdHocProjectBackup.Layouts.ACNAdHocProjectBackup.AdHocProjectBackup.configurePSI() in D:\MeghaMR\Tools_MSPS2019_ACNAdHocProjectBackup\ACNAdHocProjectBackup\Layouts\ACNAdHocProjectBackup\AdHocProjectBackup.aspx.cs:line 183
   at ACNAdHocProjectBackup.Layouts.ACNAdHocProjectBackup.AdHocProjectBackup.Page_Load(Object sender, EventArgs e) in D:\MeghaMR\Tools_MSPS2019_ACNAdHocProjectBackup\ACNAdHocProjectBackup\Layouts\ACNAdHocProjectBackup\AdHocProjectBackup.aspx.cs:line 39

  This exception was originally thrown at this call stack:
    ACNAdHocProjectBackup.ACNPSIConfigurator.ConfigurePSIClients() in ACNPSIConfigurator.cs
    ACNAdHocProjectBackup.Layouts.ACNAdHocProjectBackup.AdHocProjectBackup.configurePSI() in AdHocProjectBackup.aspx.cs
    ACNAdHocProjectBackup.Layouts.ACNAdHocProjectBackup.AdHocProjectBackup.Page_Load(object, System.EventArgs) in AdHocProjectBackup.aspx.cs
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An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
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1 answer

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  1. RaytheonXie_MSFT 33,641 Reputation points Microsoft Vendor
    2023-10-18T05:52:33.74+00:00

    Hi @M R, MEGHA,

    According the error message, it seems you haven't added Azure Identity client library. You could refer to the following command to install the library azure key Vault secret needed.

    dotnet add package Azure.Security.KeyVault.Secrets
dotnet add package Azure.Identity

    Here is the document for more details of the steps

    https://learn.microsoft.com/en-us/azure/key-vault/secrets/quick-create-net?tabs=azure-cli

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