# ERR\_PLUGIN\_DEV\_INVALID\_DEFINITION: The descriptor of the plugin is invalid[¶](https://doc.dataiku.com/dss/latest/troubleshooting/errors/ERR_PLUGIN_DEV_INVALID_DEFINITION.html#err-plugin-dev-invalid-definition-the-descriptor-of-the-plugin-is-invalid "Permalink to this headline")

The user is attempting to push a change to a dev plugin’s descriptor that would break it:

* the changes pushed are not in JSON format

* the changes pushed don’t contain an identifier field for the plugin
