I have a Ubuntu-18.04 aws instance. I have installed Erlang/OTP 21 [erts-10.1] in it following this link https://hostpresto.com/community/tutorials/how-to-install-erlang-on-ubuntu-16-04/ but I am whenever I try installing ejabberd on the same instance I get the error like this
ubuntu@ip-172-11-11-11:~$ sudo apt-get install make gcc libexpat1-dev libyaml-dev automake libssl-dev erlang build-essential libncurses5-dev openssl zlib1g-dev libgd-dev libwebp-dev fop xsltproc unixodbc-dev -y
Reading package lists... Done
Building dependency tree
Reading state information... Done
automake is already the newest version (1:1.15.1-3ubuntu2).
build-essential is already the newest version (12.4ubuntu1).
make is already the newest version (4.1-9.1ubuntu1).
make set to manually installed.
gcc is already the newest version (4:7.3.0-3ubuntu2.1).
gcc set to manually installed.
libncurses5-dev is already the newest version (6.1-1ubuntu1.18.04).
libssl-dev is already the newest version (1.1.0g-2ubuntu4.1).
openssl is already the newest version (1.1.0g-2ubuntu4.1).
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:
erlang : Depends: erlang-diameter but it is not going to be installed
Depends: erlang-eldap but it is not going to be installed
Depends: erlang-ftp but it is not going to be installed
Depends: erlang-tftp but it is not going to be installed
Recommends: erlang-ic-java but it is not going to be installed
Recommends: erlang-src but it is not going to be installed
Recommends: erlang-examples but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
So I decided to uninstall erlang using these commands:
sudo apt-get purge erlang* sudo apt-get remove erlang sudo apt-get remove --auto-remove erlang sudo apt-get purge erlang
But even after running them when I write erl on the cmd-prompt I get
Erlang/OTP 21 [erts-10.1] [source] [64-bit] [smp:1:1] [ds:1:1:10] [async-threads:1] [hipe]
Eshell V10.1 (abort with ^G)
1>
BREAK: (a)bort (c)ontinue (p)roc info (i)nfo (l)oaded
(v)ersion (k)ill (D)b-tables (d)istribution
Where did I went wrong and how can I uninstall erlang completely now?
EDIT
~$ dpkg -l 'erlang*'
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-=================================
un erlang <none> <none> (no description available)
un erlang-abi-17. <none> <none> (no description available)
un erlang-appmon <none> <none> (no description available)
un erlang-asn1 <none> <none> (no description available)
un erlang-base <none> <none> (no description available)
un erlang-base-hi <none> <none> (no description available)
un erlang-common- <none> <none> (no description available)
un erlang-corba <none> <none> (no description available)
un erlang-crypto <none> <none> (no description available)
un erlang-debugge <none> <none> (no description available)
un erlang-dev <none> <none> (no description available)
un erlang-dialyze <none> <none> (no description available)
un erlang-doc <none> <none> (no description available)
un erlang-docbuil <none> <none> (no description available)
un erlang-edoc <none> <none> (no description available)
un erlang-erl-doc <none> <none> (no description available)
un erlang-et <none> <none> (no description available)
un erlang-eunit <none> <none> (no description available)
un erlang-gs <none> <none> (no description available)
un erlang-ic <none> <none> (no description available)
un erlang-inets <none> <none> (no description available)
un erlang-inviso <none> <none> (no description available)
un erlang-manpage <none> <none> (no description available)
un erlang-megaco <none> <none> (no description available)
un erlang-mnesia <none> <none> (no description available)
ii erlang-mode 1:21.1-1 all Erlang major editing mode for Ema
un erlang-observe <none> <none> (no description available)
un erlang-odbc <none> <none> (no description available)
un erlang-os-mon <none> <none> (no description available)
un erlang-parseto <none> <none> (no description available)
un erlang-percept <none> <none> (no description available)
un erlang-pman <none> <none> (no description available)
un erlang-public- <none> <none> (no description available)
un erlang-reltool <none> <none> (no description available)
un erlang-runtime <none> <none> (no description available)
un erlang-snmp <none> <none> (no description available)
ii erlang-solutio 1.0 all A package to add repository.
un erlang-ssh <none> <none> (no description available)
un erlang-ssl <none> <none> (no description available)
un erlang-syntax- <none> <none> (no description available)
un erlang-test-se <none> <none> (no description available)
un erlang-toolbar <none> <none> (no description available)
un erlang-tools <none> <none> (no description available)
un erlang-tv <none> <none> (no description available)
un erlang-typer <none> <none> (no description available)
un erlang-webtool <none> <none> (no description available)
un erlang-wx <none> <none> (no description available)
un erlang-xmerl <none> <none> (no description available)
'type erl' gives this output
erl is /usr/bin/erl
dpkg -l 'erlang*'list any Erlang packages as installed? What doestype erlsay? – legosciasudo apt-get remove --auto-remove erlang-base– Amit Mishra