ErrorCodes

Static class defining Error codes that appear during communication with the server. These are variables related errors.

Name	Type	Description
`VarNotExist`		Variable was not found in server
`WontSubcribe`
`CantSubcribe`
`CantUnSubcribe`
`BadValue`		Provided Write Request value has wrong type or could not be understood
`NoNetwork`		Network is down, cannot retrieve values
`NetError`
`Unauthorized`		Action cannot be performed, user has no rights.
`BadReq`		HTTP 400 error on request
`ServerError`		Serverside bug? HTTP 500
`NotFound`		Return from a HTTP 404
`BadData`
`EngineNotExist`
`UnknownError`

new ErrorCodes()