Comment 1 for bug 1824740

Thanks for your report.

Yes, while the second command not may be *needed*, it's wise (in order to prevent dependency issues) to run it before installing new packages.

Please note that this is the bug tracker for the desktop documentation, not a support forum. If you have more question, please use one of the resources for the purpose.

https://community.ubuntu.com/t/finding-help/712