MediaWiki:Apierror-cannot-async-upload-file
提供: 北海道旧土人保護部落戸口表（明治5年）コタンの研究
The parameters async and file cannot be combined. If you want asynchronous processing of your uploaded file, first upload it to stash (using the stash parameter) and then publish the stashed file asynchronously (using filekey and async).
