how can i resolve sudo: rosdep: command not found
时间: 2023-08-01 18:08:00 浏览: 46
You can try installing rosdep by running the following command:
```
sudo apt-get install python-rosdep
```
If the package is already installed, you can try updating the package using the following command:
```
sudo rosdep update
```
If these commands do not resolve the issue, you may need to check your ROS installation and ensure that it is properly configured.
相关问题
sudo: ifdown: command not found
The error message "sudo: ifdown: command not found" suggests that the "ifdown" command is not installed on your system or is not in the system's path. The "ifdown" command is typically used to bring down a network interface.
To resolve this issue, you can try installing the "ifupdown" package which contains the "ifdown" command. You can use the following command on Ubuntu/Debian:
```
sudo apt-get install ifupdown
```
Alternatively, you can try using the "ip" command to bring down the network interface. For example:
```
sudo ip link set <interface> down
```
Replace `<interface>` with the name of the network interface that you want to bring down.
centos7 sudo: psql: command not found
The error "sudo: psql: command not found" indicates that the "psql" command is not available on your system or it is not in the system's PATH.
To resolve this issue, you can try installing the PostgreSQL client tools using your operating system's package manager. For example, on CentOS 7, you can run the following command to install the client tools:
```
sudo yum install postgresql
```
Once the installation is complete, you should be able to run the "psql" command with sudo privileges. If you still encounter the same error, you may need to add the PostgreSQL client tools directory to your system PATH.
On CentOS 7, you can do this by adding the following line to the end of your `~/.bashrc` file:
```
export PATH=$PATH:/usr/pgsql-<version>/bin
```
Replace `<version>` with the version number of PostgreSQL that you have installed. After saving the file, run `source ~/.bashrc` to reload the PATH configuration.