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我刚开始也遇到这个问题，直接安装驱动会有这个提示。我就把驱动卸载了。在设备管理器上面点击添加驱动，选择驱动目录。等板子连上电脑上时它自己就好了，没有感叹号。
@thjfk 同样的错误，没看到输入用户名、密码的地方，这怎么搞
正需要LV2等级，愁死我了
我这也是，无法烧录