yianti It is the correct behavior to have an error in the first way. You are using -r, this parameter is used to import a skeleton. When importing a skeleton from a Spine project, it is not an error if the version of that Spine project is older than the editor version. (The import will fail if the project is saved in a newer version). However, you mentioned you are importing a json or .skel file, so in this case you need to import using the same version of Spine that was used to export the data. This will be the same result if you try to do it on the editor's UI, regardless of whether you run Spine via the CLI:
However, it is strange that you have to download the spine editor again because of this error. Does the problem always reproduce when you try to import a .json or .skel file saved in a different version? Or does it only reproduce occasionally?
