解决dify添加代码节点时候错误信息：Run failed: Failed to execute code, which is likely a network issue, please check if the sandbox service is running. ( Error: [Errno -2] Name or service not known )

问题描述：

这是我的dify中配置chatflow的DSL，疑问：当我不配置代码节点的时候，预览输入：未佩戴安全帽 就可以正常回复。

但是有了代码执行节点之后，同样预览输入同样问题，就错误：Run failed: Failed to execute code, which is likely a network issue, please check if the sandbox service is running. ( Error: [Errno -2] Name or service not known )

查看错误日志：

docker logs docker-sandbox-1 --tail 50
2026/04/14 05:33:09 setup.go:85: [INFO]nodejs runner environment initialized
2026/04/14 05:33:09 setup.go:33: [INFO]initializing python runner environment...
2026/04/14 05:33:09 server.go:18: [PANIC]failed to init config: open conf/config.yaml: no such file or directory
panic: 

goroutine 1 [running]:
github.com/langgenius/dify-sandbox/internal/utils/log.(*Log).Panic(...)
	/home/runner/work/dify-sandbox/dify-sandbox/internal/utils/log/core.go:55
github.com/langgenius/dify-sandbox/internal/utils/log.Panic({0x91f4e0?, 0xc0000d9f40?}, {0xc0000d9f08?, 0x0?, 0x47503a?})
	/home/runner/work/dify-sandbox/dify-sandbox/internal/utils/log/core.go:209 +0x69
github.com/langgenius/dify-sandbox/internal/server.initConfig()
	/home/runner/work/dify-sandbox/dify-sandbox/internal/server/server.go:18 +0x5e
github.com/langgenius/dify-sandbox/internal/server.Run()
	/home/runner/work/dify-sandbox/dify-sandbox/internal/server/server.go:95 +0x13
main.main()
	/home/runner/work/dify-sandbox/dify-sandbox/cmd/server/main.go:6 +0xf
2026/04/14 05:34:09 setup.go:29: [INFO]initializing nodejs runner environment...
2026/04/14 05:34:09 setup.go:85: [INFO]nodejs runner environment initialized
2026/04/14 05:34:09 setup.go:33: [INFO]initializing python runner environment...
2026/04/14 05:34:09 server.go:18: [PANIC]failed to init config: open conf/config.yaml: no such file or directory
panic: 

goroutine 1 [running]:
github.com/langgenius/dify-sandbox/internal/utils/log.(*Log).Panic(...)
	/home/runner/work/dify-sandbox/dify-sandbox/internal/utils/log/core.go:5