Jetpack SDK : - not Jetpack 4.2

Trying to get Xavier up,

I cannot get SDK to install,
Intel NUC 8G 100GSSD, Ubuntu 18.04.2 LTS Bionic

nick@nick-nuc:~/SDK$ sudo apt install ./sdkmanager_0.9.12-4180_amd64

E: Unsupported file ./sdkmanager_0.9.12-4180_amd64 given on commandline
E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?

new to Linux,

should I install Jetpack 4.2 or Jetpack SDK ?
should I create a new folder for this file ? created /SDK

Hi Traversity,

Suggest you can reboot your host ubuntu and install sdkmanager again.

$ sudo apt install ./sdkmanager_0.9.12-4180_amd64.deb

You don’t need create the new folder, after you install sdkmanager, you can launch SDK Manager with the following command:

$ sdkmanager

Run SDK manager guide:

I thought that only Windows needed a reboot ???

It worked… Genius Carol Yu…