我試圖將從2.5.3升級到最新版本2.6.0與pip install dateutil --upgrade,但得到了問題Could not find a version。 $ pip install dateutil --upgrade
Collecting dateutil
Could not find a version that satisfies the requirement
我想我們Elasticsearch版本升級從2.4到5.0.1,我收到這些錯誤: 1. ERROR in D:\Projects\projectname\projectname.persistence.elasticsearch\src\main\java\com\path\to\some\repository\ElasticCategoryRepository.java (at line 1)