# 报错"Connection permission denied (publickey)"如何解决?
#### 问题现象
VS Code连接开发环境时报错"Connection permission denied (publickey). Please make sure the key file is correctly selected and the file permission is correct. You can view the instance keypair information on ModelArts console."
![](https://support.huaweicloud.com/trouble-modelarts/figure/zh-cn_image_0000002054049521.png)
#### 原因分析
可能是密钥文件或放置密钥的文件夹权限问题，密钥不正确等。
#### 解决方案
请参考以下文档进行解决。
- [本地通过SSH连接Notebook实例时，报错：Bad permissions/Permission denied (publickey)](https://support.huaweicloud.com/trouble-modelarts/modelarts_05_4201.html)
- [在ModelArts打开Notebook访问正常，使用SSH/VS Code访问时权限报错：Permission denied (publickey)](https://support.huaweicloud.com/trouble-modelarts/modelarts_05_4197.html)
- [用户修改/home/ma-user/.ssh目录权限导致SSH无法使用，报错：Permission denied (publickey)](https://support.huaweicloud.com/trouble-modelarts/modelarts_05_4198.html)