How to Fix '422 Unprocessable Entity' when sending a POST request to Redmine API?
问题 I am trying to create a wiki page using redmine rest api. The Authentication was succeeded, however the wiki page is not being created because of a 422 error. The Redmine documentation says: "When trying to create or update an object with invalid or missing attribute parameters, you will get a 422 Unprocessable Entity response. That means that the object could not be created or updated." But I can seem to find out where I have mess up. The PROBLEM CAME UP WHEN I DID THE SECOND REQUEST- "PUT