while uploading images to server, it gives me expectation failed error response code 417.
My server side coding is in php, and client is android
request.getParams().setBooleanParameter( "http.protocol.expect-continue", false ) worked in my case
The RFC says that this is due to an Expect request header that the server can't meet. Look at the request headers sent by your client application, and see what their purpose is and if they're necessary.