My (newbie) Ubuntu 20.04 server is configured for both 32- and 64-bit architecture:

$ dpkg --print-architecture


$ dpkg --print-foreign-architectures


However, I can't seem to have both 32-bit and 64-bit versions of the same library which apps depend on.

apt-get install libodbc1:i386
apt-get install libodbc1

When I install one, the other is removed. When I install the 32-bit version, apps (Plesk, VS Code) that need the 64-bit version break, and when I install the 64-bit version, apps (WineHQ) that need the 32-bit version break.

How do I install both to make all apps work?


When I run the following, I get the following:

$ sudo apt install libodbc1 libodbc1:i386
The following packages have unmet dependencies:
 libodbc1 : Breaks: libodbc1:i386 (!= 2.3.7) but 2.3.6-0.1build1 is to be installed
 libodbc1:i386 : Breaks: libodbc1 (!= 2.3.6-0.1build1) but 2.3.7 is to be installed
E: Unable to correct problems, you have held broken packages.

And, when I run the following, I get the following:

$ apt policy libodbc1
  Installed: 2.3.7
  Candidate: 2.3.7
  Version table:
 *** 2.3.7 500
        500 https://packages.microsoft.com/ubuntu/20.04/prod focal/main amd64 Packages
        100 /var/lib/dpkg/status
     2.3.6-0.1build1 500
        500 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages

3 Answers 3


For me, what worked was this:

dpkg --add-architecture i386
apt update
apt install libc6-i386

as described here


I was using a newer version of libodbc1 by Microsoft, which was not compatible with libodbc1:i386.

I disabled Microsoft packages URL, and downgraded libodbc1 to version 2.3.6-0.1build1, and libodbc1:i386 installed just fine.

Everything seems to be working now. I just hope Microsoft products don't break in the future.


Did you install multiarch-support? If not, try:

sudo apt-get -y install multiarch-support:i386    
  • 3
    This returns E: Unable to locate package multiarch-support:i386 for me.
    – jdowner
    Commented Feb 16, 2022 at 14:09

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