While installing jetpack 4.6 with SDK manager, the manager couldn't install python3.6-numpy and happen to met error log

[ih.choi]

While install Jetpack with SDK Manager, I met a problem which the sdk manager can’t install python3.6-numpy package. So VPI on host missing dependencies error is occurred.
I tried to “retry” after installing python3-numpy but the SDK Manager keep trying install python3.6-numpy and dispayed error log.
Please check the log file exported from SDK Manager and give me some tips.
SDKM_logs_2022-10-11_20-07-50.zip (1.0 MB)

[AastaLLL]

Hi,

Based on the log, it seems the root cause is that python 3.6 cannot be installed.

17:48:14.742 - info: NV_VPI_HOST_COMP@host: The following packages have unmet dependencies:
17:48:14.791 - info: NV_VPI_HOST_COMP@host:  python3-vpi1 : Depends: python3.6 but it is not installable
17:48:14.802 - info: Event: NV_VPI_HOST_COMP@host - error is:  python3-vpi1 : Depends: python3.6 but it is not installable
17:48:14.803 - info: NV_VPI_HOST_COMP@host:                 Depends: python3.6-numpy but it is not installable
17:48:14.803 - info: Event: NV_VPI_HOST_COMP@host - error is:                 Depends: python3.6-numpy but it is not installable
17:48:14.823 - error: NV_VPI_HOST_COMP@host: E: Unable to correct problems, you have held broken packages.
17:48:14.823 - info: Event: NV_VPI_HOST_COMP@host - error is: E: Unable to correct problems, you have held broken packages.

Could you please share the environment of your host machine with us first?
Do you use Ubuntu 18.04?

Thanks.

[ih.choi]

My machine’s version of Ubuntu is 20.04 because my laptop is not compatible to Ubuntu18.04, Lenovo thinkpad x1 carbon :-(.
and I edited VERSION_ID item of /etc/os-release file from “20.04” to “18.04”, which I found this way from googling, searching keyword “how to install jetpack on Ubuntu 20.04”.
All step was okay except this.
Do I need to re-install OS with Ubuntu 18.04 or is there other way to resolve it?

I have just find that there is 20.04 version in the list of host os version for system requirement (NVIDIA SDK Manager | NVIDIA Developer)

[AastaLLL]

Hi,

Based on the package list in our apt server below, the packages for Ubuntu 20.04 are only available for the user of JetPack5.

https://repo.download.nvidia.com/jetson/#Jetpack%204.6

Thanks.