Question: I installed TeamTalk from <http://bearwear.dk> inside my home directory, but when I try to run  `./tt5srv -wizard` I get

```
error while loading shared libraries: bdl.so.2: cannot open shared object file: No such file or directory

```

I tried with and without `sudo`

I found fixes for other libraries but I didn't see any mention of bdl.so.2.

Ubuntu 18.04. How to fix this? Is it another case of wrong location or symlink?

Answer: 
This:

```
sudo apt install -f mysql-client=5.7.30-1ubuntu18.04

```

should be:

```
sudo apt install -f mysql-client=5.7.31-1ubuntu18.04

```

I landed on your question with the same problem and solved this by looking here <http://repo.mysql.com/apt/ubuntu/dists/bionic/mysql-5.7/binary-amd64/Packages>
Nothing here quite worked for me, perhaps because I was installing in a Dockerfile. Here's what did work

```
sed -i -e 's|focal|bionic|g' /etc/apt/sources.list
apt-get -qq update
apt-get install --no-install-recommends -y mysql-client-5.7

```

Either do that last thing, or you could always set your `sources.list` back to focal with

```
sed -i -e 's|bionic|focal|g' /etc/apt/sources.list

```