Installing adobe-flashplugin on Ubuntu 16.10 for Firefox

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I am trying to install adobe-flashplugin on Ubuntu 16.10 for Firefox. I used the following command:

sudo apt-get install adobe-flashplugin

which throws the following error:

Err:0 http://archive.canonical.com/ubuntu maverick/partner i386 adobe-flashplugin i386 11.2.202.228-0maverick1
  Insufficient information available to perform this download securely
  Hashes of expected file:
   - SHA1:bff9666cc9f108ae59833a0f44c2499f0a0dd261 [weak]
   - MD5Sum:b92c92245c190c7dc9d4a9bb4bd780c3 [weak]
   - Checksum-FileSize:6591116 [weak]
Err:1 http://archive.canonical.com/ubuntu maverick/partner i386 adobe-flash-properties-gtk i386 11.2.202.228-0maverick1
  Insufficient information available to perform this download securely
  Hashes of expected file:
   - SHA1:5ea9ea111686652665cfca3aa1320b064c4f458f [weak]
   - MD5Sum:2ed1fadfb6a07c3ca8ba9b8f3c774edc [weak]
   - Checksum-FileSize:131074 [weak]
E: Failed to fetch http://archive.canonical.com/ubuntu/pool/partner/a/adobe-flashplugin/adobe-flashplugin_11.2.202.228-0maverick1_i386.deb  Insufficient information available to perform this download securely
   Hashes of expected file:
    - SHA1:bff9666cc9f108ae59833a0f44c2499f0a0dd261 [weak]
    - MD5Sum:b92c92245c190c7dc9d4a9bb4bd780c3 [weak]
    - Checksum-FileSize:6591116 [weak]
E: Failed to fetch http://archive.canonical.com/ubuntu/pool/partner/a/adobe-flashplugin/adobe-flash-properties-gtk_11.2.202.228-0maverick1_i386.deb  Insufficient information available to perform this download securely
   Hashes of expected file:
    - SHA1:5ea9ea111686652665cfca3aa1320b064c4f458f [weak]
    - MD5Sum:2ed1fadfb6a07c3ca8ba9b8f3c774edc [weak]
    - Checksum-FileSize:131074 [weak]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

How can I fix this?

Answer

Add this line to /etc/apt/sources.list:

deb http://archive.canonical.com/ubuntu yakkety partner

and run

sudo apt update

Attribution
Source : Link , Question Author : MYaseen208 , Answer Author : Gunnar Hjalmarsson

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