尝试 gradle 同步后...它失败并在消息对话框中说
Missing Android platform(s) detected: 'android-26' Install missing platform(s)
and sync project
当我点击Install missing platform(s) and sync project一个进度条窗口时会弹出它说Downloading当到达大约一半时它会关闭并且没有任何反应我从设置中安装了api 26并尝试卸载并再次安装。