create a folder that will be shared and add a member to it

iam using the code below in a java desktop application, in order to create a folder in a dropbox account that i want to be shared, and i am trying to add another member by his email address, but iam getting:

java.lang.NoSuchMethodError: com.dropbox.core.json.JsonWriter.writeFields(Ljava/lang/Object;Lcom/fasterxml/jackson/core/JsonGenerator;)V
at com.dropbox.core.v2.DbxFiles$CreateFolderArg$1.write(DbxFiles.java:5337)
at com.dropbox.core.v2.DbxFiles$CreateFolderArg$1.write(DbxFiles.java:5332)
at com.dropbox.core.json.JsonWriter.writeToStream(JsonWriter.java:23)
at com.dropbox.core.json.JsonWriter.writeToStream(JsonWriter.java:33)
at com.dropbox.core.v2.DbxRawClientV2.rpcStyle(DbxRawClientV2.java:82)
at com.dropbox.core.v2.DbxFiles.createFolder(DbxFiles.java:8459)
at com.dropbox.core.v2.DbxFiles.createFolder(DbxFiles.java:8479) 

 

my code is the following:

DbxRequestConfig dbxRequestConfig = new DbxRequestConfig("test/1.0", Locale.getDefault().toString());
DbxClientV2 dbxClient = new DbxClientV2(dbxRequestConfig, my_access_token);

FolderMetadata md = dbxClient.files.createFolder("/test");

ArrayList<AddMember> list = new ArrayList();
DbxSharing.AddMember a1 = new DbxSharing.AddMember(DbxSharing.MemberSelector.email("xxxxxx@gmail.com"),DbxSharing.AccessLevel.editor);

list.add(a1);
dbxClient.sharing.addFolderMember(md.parentSharedFolderId, list);

 

i have already search for any solution to create a shared folder and add a member to it, but iam not finding anything useful to my case.

Could anyone tell me what iam doing wrong??please help me ASAP.