chmod: cannot access 'voice.py': No such file or directory

这个错误通常表示你在尝试更改一个不存在的文件的权限。请确保你输入的文件名正确并且文件确实存在于当前目录中。如果文件名正确并且文件确实存在，你可能需要检查你是否有足够的权限来更改该文件的权限。你可以使用 ls 命令来查看当前目录下的所有文件，确认文件名是否正确，或者使用 sudo 命令以管理员权限运行 chmod 命令。

相关问题

chmod: cannot access '777': No such file or directory

This error message indicates that the `chmod` command cannot find a file or directory named `777` in the current working directory.

The `chmod` command is used to change the permissions of a file or directory. The syntax for using the `chmod` command is:

chmod options permissions file

In the above syntax, `options` are optional and can be used to specify how the permissions should be changed. `permissions` are the new permissions that you want to set for the file or directory, and `file` is the name of the file or directory that you want to change the permissions for.

In your case, it seems like you are trying to set permissions for a file or directory named `777`, which does not exist in the current working directory. Make sure that you have entered the correct file or directory name in the `chmod` command and that it exists in the current working directory.

root@pynq:/home/xilinx/pynq/protobuf-3.0.0# chmod +x configure chmod: cannot access 'configure': No such file or directory已经有为何无法运行

这个错误可能是因为您没有正确下载或提取protobuf库文件。请确保您已经正确下载了protobuf库文件，并且在当前工作目录下提取了该文件。另外，也可以尝试使用以下命令来授予configure文件执行权限：

chmod +x ./configure

请注意，"./" 是必需的，以确保命令在当前目录下执行。