Cannot launch instance

edit

Hello all,

i have a hyper-v compute node when i try to launch an instance form a VHD image , i get the error : Expecting to find id or name in user BadRequest: Expecting to find id or name in user - the server could not comply with the request since it is either malformed or otherwise incorrect. The client is assumed to be in error. (HTTP 400) (Request-ID: req-5759d0b9-2881-4598-8221-574ca93c9c36)

Thanks in advance.