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Watson IoT edge platform installation problems

55000128KP gravatar image
Question by Dave Rensberger  (20) | Feb 06 at 11:04 AM iotwatson-iotwatson-iot-edge-analyticsedge-analytics

When trying to install the Watson IoT edge platform on an x86(64 bit) PC running Ubuntu, I get the following error:

 $ sudo apt-get install horizon-wiotp
 Reading package lists... Done
 Building dependency tree       
 Reading state information... Done
 Some packages could not be installed. This may mean that you have
 requested an impossible situation or if you are using the unstable
 distribution that some required packages have not yet been created
 or been moved out of Incoming.
 The following information may help to resolve the situation:
 
 The following packages have unmet dependencies:
  horizon-wiotp : Depends: horizon (= 2.17.2~ppa~ubuntu.xenial) but 2.20.5~ppa~ubuntu.xenial is to be installed
 E: Unable to correct problems, you have held broken packages.

I noticed a similar problem reported for Raspbian, but the prescribed solution didn't work on x86. I'd once forced it to work by hacking up the installation procedure, but I don't remember exactly how.

What is the correct way to install the IoT Edge Platform? Is there a plan these dependency issues? This has been broken for months now.

Thanks, --Dave

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Answer by Leandro Cordeiro David (227) | Feb 08 at 12:25 PM

Probably similar to this question: https://developer.ibm.com/answers/questions/481558/watson-iot-edge-installation-issue-on-raspberry-pi/

Can you try this (for raspberry)

 apt-get install horizon-cli=2.17.14~ppa~raspbian.jessie
 
 apt-get install horizon=2.17.14~ppa~raspbian.jessie
 
 apt-get install horizon-wiotp

Or change raspbian.jessie for ubuntu.xenial for ubuntu installation

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55000128KP gravatar image Dave Rensberger (20)   Feb 11 at 06:25 PM 0
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Hi Leandro,

That question was the one I was referring to when I said "I noticed a similar problem reported for Raspbian". As I stated, though, just translating that workaround into ubuntu.xenial doesn't work:

 bws@ubuntu-amd-squiddy:~$ sudo apt-get install horizon-cli=2.17.14~ppa~ubuntu.xenial
 Reading package lists... Done
 Building dependency tree       
 Reading state information... Done
 E: Version '2.17.14~ppa~ubuntu.xenial' for 'horizon-cli' was not found

Isn't it possible for you to to just fix this on the apt server side (maybe by just reverting the packages to whatever they were when they last worked)? The way things are now, it's impossible to install and it's been that way for several months now.

--Dave

55000128KP gravatar image Dave Rensberger (20)   Feb 13 at 10:50 AM 0
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I eventually found something that works (although I'm not sure it's the best solution). I had to download all of the *.deb files for the "lowest common version" of all of the packages, which turns out to be 2.17.9 for the _amd64 architecture:

 sudo dpkg -i horizon-cli_2.17.9~ppa~ubuntu.xenial_amd64.deb
 sudo dpkg -i horizon_2.17.9~ppa~ubuntu.xenial_amd64.deb
 sudo dpkg -i bluehorizon_2.17.9~ppa~ubuntu.xenial_all.deb
 sudo dpkg --force-all -i horizon-wiotp_2.17.9~ppa~ubuntu.xenial_all.deb

--Dave

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