Clearhat

An article on github.io gave all the instructions I needed to get the components above working, and it's a great tutorial. However, I needed to tweak a few commands to get them working, so I'm creating this post here and perhaps will save someone else an afternoon's research if they can find this link as well.

tried:

wget -qO- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.asc.gpg

got this error: "gpg: no valid OpenPGP data found."

so, after a bit of research, did this:

sudo apt-get install ca-certificates

then this worked:

wget -qO- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.asc.gpg

these all worked fine:

sudo mv microsoft.asc.gpg /etc/apt/trusted.gpg.d/
wget -q https://packages.microsoft.com/config/ubuntu/18.04/prod.list
sudo mv prod.list /etc/apt/sources.list.d/microsoft-prod.list
sudo chown root:root /etc/apt/trusted.gpg.d/microsoft.asc.gpg
sudo chown root:root /etc/apt/sources.list.d/microsoft-prod.list

these too:

sudo apt-get install apt-transport-https
sudo apt-get update

tried:

sudo apt-get install aspnetcore-runtime-2.1

got this error: The following packages have unmet dependencies: aspnetcore-runtime-2.1 : Depends: dotnet-runtime-2.1 (>= 2.1.3) but it is not going to be installed E: Unable to correct problems, you have held broken packages.

walked up the dependency tree failures to find the root cause:

1.  

   sudo apt-get install dotnet-runtime-2.1

   The following packages have unmet dependencies: dotnet-runtime-2.1 : Depends: dotnet-runtime-deps-2.1 (>= 2.1.3) but it is not going to be installed E: Unable to correct problems, you have held broken packages.

    

2.  

   sudo apt-get install aspnetcore-runtime-2.1

   The following packages have unmet dependencies: aspnetcore-runtime-2.1 : Depends: dotnet-runtime-2.1 (>= 2.1.3) but it is not going to be installed E: Unable to correct problems, you have held broken packages.

    

3.  

   sudo apt-get install dotnet-runtime-2.1

   The following packages have unmet dependencies: dotnet-runtime-2.1 : Depends: dotnet-runtime-deps-2.1 (>= 2.1.3) but it is not going to be installed E: Unable to correct problems, you have held broken packages.

    

4.  

   sudo apt-get install dotnet-runtime-deps-2.1

   The following packages have unmet dependencies: dotnet-runtime-deps-2.1 : Depends: libssl1.0.0 but it is not installable Depends: libicu60 but it is not installable E: Unable to correct problems, you have held broken packages.

    

BINGO! found the root missing dependencies. Here's the fix:

wget http://mirrors.kernel.org/ubuntu/pool/main/i/icu/libicu60_60.2-6ubuntu1_amd64.deb
sudo dpkg -i libicu60_60.2-6ubuntu1_amd64.deb
wget http://archive.ubuntu.com/ubuntu/pool/main/o/openssl1.0/libssl1.0.0_1.0.2n-1ubuntu5_amd64.deb
sudo dpkg -i libssl1.0.0_1.0.2n-1ubuntu5_amd64.deb

and finally this worked:

sudo apt-get install aspnetcore-runtime-2.1

this worked too:

sudo apt-get install dotnet-sdk-2.1

testing everything worked fine...

then under "Install MySQL"...

tried:

sudo apt-get install mysql-server mysql-client libmysqlclient-dev -y

failed....

so I did:

sudo apt-get install mysql-server mysql-client default-libmysqlclient-dev -y

and that worked.

Here's the link to the original article: https://odan.github.io/2018/07/17/aspnet-core-2-ubuntu-setup.html