Not Found
When Horizon can’t find whatever you are requesting, it will return a not_found error. This is similar to a “۴۰۴ Not Found” error response in HTTP.
Incorrect URL path parameters or missing data are the common reasons for this error. If you navigate using a link from a valid response, you should never receive this error message.
Attributes
As with all errors Horizon returns, not_found follows the Problem Details for HTTP APIs draft specification guide and thus has the following attributes:
| Description | Type | Attribute | 
| The identifier for the error. This is a URL that can be visited in the browser | URL | Type | 
| A short title describing the error | String | Title | 
| An HTTP status code that maps to the error | Number | Status | 
| A more detailed description of the error | String | Detail | 
| A token that uniquely identifies this request. Allows server administrators to correlate a client report with server log files | String | Instance |