MakeBucketAsync does not work with region parameter

I am unable to create a bucket using the .NET client SDK. I get an exception with

MinIO API responded with message=The XML you provided was not well-formed or did not validate against our published schema

All my code does is

      _mc = new MinioClient(endpoint, config.AccessKeyId, config.SecretAccessKey);

      if (uri.Scheme == "https") {
        _mc = _mc.WithSSL();
      }

      _mc.MakeBucketAsync("xyz", _config.Region).Wait();

If I run a local minio server I get the following:

$ minio server minio-lol
...
API: PutBucket(bucket=xyz)
Time: 16:27:01 CEST 09/29/2020
DeploymentID: 4c442570-afbb-4ca2-a840-eb537e128865
RequestID: 1639476057D9FF78
RemoteHost: 127.0.0.1
Host: 127.0.0.1:9000
UserAgent: MinIO (Darwin 18.7.0 Darwin Kernel Version 18.7.0: Thu Jun 20 18:42:21 PDT 2019; root:xnu-4903.270.47~4/RELEASE_X86_64;X64) minio-dotnet/1.0.9
Error: Bad sha256: Expected e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 does not match calculated 21a2331ffea5b7711cd8a996461c34140a170b981d282a9e1ae9c5d38f672e50
       4: cmd/auth-handler.go:320:cmd.checkRequestAuthTypeToAccessKey()
       3: cmd/auth-handler.go:273:cmd.checkRequestAuthType()
       2: cmd/bucket-handlers.go:540:cmd.objectAPIHandlers.PutBucketHandler()
       1: net/http/server.go:2042:http.HandlerFunc.ServeHTTP()

And if I use admin tracing, I find this:

minio.cloud.algoryx.se [REQUEST s3.PutBucket] 14:44:51.385
minio.cloud.algoryx.se PUT /xyz
minio.cloud.algoryx.se Proto:
minio.cloud.algoryx.se Host: minio.cloud.algoryx.se:443
minio.cloud.algoryx.se Authorization: AWS4-HMAC-SHA256 Credential=xxx, SignedHeaders=host;x-amz-content-sha256;x-amz-date, Signature=xxx
minio.cloud.algoryx.se Content-Type: application/xml
minio.cloud.algoryx.se User-Agent: MinIO (Darwin 18.7.0 Darwin Kernel Version 18.7.0: Thu Jun 20 18:42:21 PDT 2019; root:xnu-4903.270.47~4/RELEASE_X86_64;X64) minio-dotnet/1.0.9
minio.cloud.algoryx.se X-Forwarded-Proto: https
minio.cloud.algoryx.se X-Real-Ip: 10.255.0.2
minio.cloud.algoryx.se Content-Length: 211
minio.cloud.algoryx.se X-Amz-Content-Sha256: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
minio.cloud.algoryx.se X-Amz-Date: 20200929T144450Z
minio.cloud.algoryx.se X-Forwarded-For: 10.255.0.2
minio.cloud.algoryx.se X-Forwarded-Port: 443
minio.cloud.algoryx.se Accept: application/json, text/json, text/x-json, text/javascript, application/xml, text/xml
minio.cloud.algoryx.se Accept-Encoding: gzip, deflate
minio.cloud.algoryx.se Request-Id: |72590bfd-44bab348368790e7.1.
minio.cloud.algoryx.se X-Forwarded-Host: minio.cloud.algoryx.se:443
minio.cloud.algoryx.se X-Forwarded-Server: d655ef62def1
minio.cloud.algoryx.se <?xml version="1.0" encoding="utf-8"?>
<q1:CreateBucketConfiguration xmlns:q1="http://s3.amazonaws.com/doc/2006-03-01/">
  <q1:LocationConstraint>eu-west-1</q1:LocationConstraint>
</q1:CreateBucketConfiguration>
minio.cloud.algoryx.se [RESPONSE] [14:44:51.385] [ Duration 349µs  ↑ 432 B  ↓ 592 B ]
minio.cloud.algoryx.se 400 Bad Request
minio.cloud.algoryx.se Content-Security-Policy: block-all-mixed-content
minio.cloud.algoryx.se Content-Type: application/xml
minio.cloud.algoryx.se Server: MinIO/RELEASE.2020-06-22T03-12-50Z
minio.cloud.algoryx.se Vary: Origin
minio.cloud.algoryx.se X-Amz-Request-Id: 163948596A994443
minio.cloud.algoryx.se X-Xss-Protection: 1; mode=block
minio.cloud.algoryx.se Accept-Ranges: bytes
minio.cloud.algoryx.se Content-Length: 333
minio.cloud.algoryx.se <?xml version="1.0" encoding="UTF-8"?>
<Error><Code>MalformedXML</Code><Message>The XML you provided was not well-formed or did not validate against our published schema.</Message><BucketName>xyz</BucketName><Resource>/xyz</Resource><RequestId>163948596A994443</RequestId><HostId>b85b8107-7224-464a-b477-f22bd6680c7a</HostId></Error>
minio.cloud.algoryx.se

If I compare this to my working python client:

minio.cloud.algoryx.se [REQUEST s3.PutBucket] 14:45:42.532
minio.cloud.algoryx.se PUT /e21dbb95-7a38-480a-9a58-dadc61e17db1/
minio.cloud.algoryx.se Proto:
minio.cloud.algoryx.se Host: minio.cloud.algoryx.se
minio.cloud.algoryx.se X-Amz-Date: 20200929T144542Z
minio.cloud.algoryx.se X-Forwarded-For: 10.255.0.2
minio.cloud.algoryx.se X-Real-Ip: 10.255.0.2
minio.cloud.algoryx.se X-Amz-Content-Sha256: UNSIGNED-PAYLOAD
minio.cloud.algoryx.se Content-Length: 153
minio.cloud.algoryx.se X-Forwarded-Proto: https
minio.cloud.algoryx.se X-Forwarded-Server: d655ef62def1
minio.cloud.algoryx.se Accept-Encoding: identity
minio.cloud.algoryx.se X-Forwarded-Port: 443
minio.cloud.algoryx.se Content-Md5: RRbNtostJSb8PTpMdgsvng==
minio.cloud.algoryx.se User-Agent: MinIO (Darwin; x86_64) minio-py/5.0.8
minio.cloud.algoryx.se X-Forwarded-Host: minio.cloud.algoryx.se
minio.cloud.algoryx.se Authorization: AWS4-HMAC-SHA256 Credential=xxx, SignedHeaders=content-length;content-md5;host;user-agent;x-amz-content-sha256;x-amz-date, Signature=xxx
minio.cloud.algoryx.se <CreateBucketConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><LocationConstraint>eu-west-1</LocationConstraint></CreateBucketConfiguration>
minio.cloud.algoryx.se [RESPONSE] [14:45:42.532] [ Duration 947µs  ↑ 355 B  ↓ 266 B ]
minio.cloud.algoryx.se 200 OK
minio.cloud.algoryx.se Content-Security-Policy: block-all-mixed-content
minio.cloud.algoryx.se Location: /e21dbb95-7a38-480a-9a58-dadc61e17db1
minio.cloud.algoryx.se Server: MinIO/RELEASE.2020-06-22T03-12-50Z
minio.cloud.algoryx.se Vary: Origin
minio.cloud.algoryx.se X-Amz-Request-Id: 1639486553292357
minio.cloud.algoryx.se X-Xss-Protection: 1; mode=block
minio.cloud.algoryx.se Accept-Ranges: bytes
minio.cloud.algoryx.se Content-Length: 0

[ebozduman]

Thank you for checking @realZhangChi So, if it works on the master branch, then as soon as the new release comes out, we can close this issue. Although there is no specific release date at this point, we are currently and actively working on it.

[harshavardhana]

Please upgrade to the latest release.