Amazon.Runtime.AmazonServiceException:无法找到凭据

Question

我们使用连接到AWS SNS服务的AWS SDK工具包在vs 2010中设计了WebService应用程序.

当我们直接从VS 2010开发工作室运行时,它非常有效,但是当我们将Web服务发布到本地IIS或专用的Web服务器时,它会失败并显示以下错误消息.

Amazon.Runtime.AmazonServiceException: Unable to find credentials

Exception 1 of 4:
System.ArgumentException: Path cannot be the empty string or all whitespace.
Parameter name: path
   at System.IO.Directory.GetParent(String path)
   at Amazon.Runtime.StoredProfileAWSCredentials.DetermineCredentialsFilePath(String profilesLocation)
   at Amazon.Runtime.StoredProfileAWSCredentials..ctor(String profileName, String profilesLocation)
   at Amazon.Runtime.EnvironmentAWSCredentials..ctor()
   at Amazon.Runtime.FallbackCredentialsFactory.<Reset>b__1()
   at Amazon.Runtime.FallbackCredentialsFactory.GetCredentials(Boolean fallbackToAnonymous)

Exception 2 of 4:
System.ArgumentException: Path cannot be the empty string or all whitespace.
Parameter name: path
   at System.IO.Directory.GetParent(String path)
   at Amazon.Runtime.StoredProfileAWSCredentials.DetermineCredentialsFilePath(String profilesLocation)
   at Amazon.Runtime.StoredProfileAWSCredentials..ctor(String profileName, String profilesLocation)
   at Amazon.Runtime.FallbackCredentialsFactory.<Reset>b__2()
   at Amazon.Runtime.FallbackCredentialsFactory.GetCredentials(Boolean fallbackToAnonymous)

Exception 3 of 4:
System.InvalidOperationException: The environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY were not set with AWS credentials.
   at Amazon.Runtime.EnvironmentVariablesAWSCredentials..ctor()
   at Amazon.Runtime.FallbackCredentialsFactory.<Reset>b__3()
   at Amazon.Runtime.FallbackCredentialsFactory.GetCredentials(Boolean fallbackToAnonymous)

Exception 4 of 4:
Amazon.Runtime.AmazonServiceException: Unable to reach credentials server
   at Amazon.Runtime.InstanceProfileAWSCredentials.GetContents(Uri uri)
   at Amazon.Runtime.InstanceProfileAWSCredentials.<GetAvailableRoles>d__0.MoveNext()
   at Amazon.Runtime.InstanceProfileAWSCredentials.GetFirstRole()
   at Amazon.Runtime.FallbackCredentialsFactory.<Reset>b__4()
   at Amazon.Runtime.FallbackCredentialsFactory.GetCredentials(Boolean fallbackToAnonymous)
   at Amazon.Runtime.FallbackCredentialsFactory.GetCredentials(Boolean fallbackToAnonymous)
   at Amazon.SimpleNotificationService.AmazonSimpleNotificationServiceClient..ctor()
   at CellicaAwsSnsService..ctor()
   at Service..ctor()

Answer 1

在可以从Web服务应用程序访问此路径的任何路径上创建凭证文件.C:\ awsfile\credentials但请记住不要给这个文件任何扩展名文件应包含以下数据.

[default]
aws_access_key_id=[your_access_key]
aws_secret_access_key=[your_secret_key]

在此之后,您需要在Web.config文件中的appsetting标记中设置路径:

<appSettings>
<add key="AWSProfilesLocation" value="C:\awsfile\credentials" />
<add key="AWSRegion" value="us-east-1" />
</appSettings>