[erlang-questions] Erlang/OTP interpreter (erl) not found butrequired

Abhishek Ranjan abhishek@REDACTED
Thu May 4 07:16:00 CEST 2017


the problem is that not only is it able to find erl and erlc but also empd and other erlang files after i have uninstalled the previous older version of Erlang. It is giving the following errrors:
checking whether make sets $(MAKE)... yes
checking for a BSD-compatible install... /usr/bin/install -c
checking for a sed that does not truncate output... /bin/sed
checking for erl... no
checking for erlc... no
checking for epmd... no
checking for erl... no
configure: error: Erlang/OTP interpreter (erl) not found but required

and If i don't run the maands after sudo su I get the following errors:
[ec2-user@REDACTED ejabberd-17.03]$ ./configure
./configure: line 1529: config.log: Permission denied
./configure: line 1539: config.log: Permission denied

But I do want do "set ERLC=$(which erlc) and also set ERL=$(which erl"
but how can I set them
I have used simple-> set erlc=$(which erlc)
set erl=$(which erl)
But then also on doing ./configure followed by sudo su gives me the same error of
configure: error: Erlang/OTP interpreter (erl) not found but required

Please suggest some Ideas


> On May 3, 2017 at 7:50 PM Jesper Louis Andersen <jesper.louis.andersen@REDACTED> wrote:
> 
>     The ejabberd build script may be a bit weak.
> 
>     * try using an explicit path rather than ~/... expand it to /home/ubuntu (or the output of echo ~) in order to make sure you don't get accidentally name expanded as root.
>     * do not use sudo when building the software. It should build without.
>     * ./configure --with-erlang=/home/ubuntu/kerl/17.1 or set ERLC=$(which erlc) and also set ERL=$(which erl)
> 
>     Configure scripts can *definitely* build without the Erlang being in the default location. It is just a question of coercion.
> 
>     On Wed, May 3, 2017 at 3:28 PM Abhishek Ranjan <abhishek@REDACTED mailto:abhishek@REDACTED > wrote:
> 
>         > >         I did an uninstall of the previous version of erlang and the ./configure gave following errors
> > 
> >         [ec2-user@REDACTED ejabberd-17.03]$ sudo ./configure
> > 
> >         checking whether make sets $(MAKE)... yes
> >         checking for a BSD-compatible install... /usr/bin/install -c
> >         checking for a sed that does not truncate output... /bin/sed
> >         checking for erl... no
> >         checking for erlc... no
> >         checking for epmd... no
> > 
> >         checking for erl... no
> >         configure: error: Erlang/OTP interpreter (erl) not found but required
> > 
> >         and that is why I was suspecting that whenever I run the ./configure command the script goes to
> >         /usr/bin
> >         and search for erl ,erlc....etc
> >         That is why I asked that is there any way that I can set my erl path to /usr/bin which is currently gives that following path on "which erl"
> >         ~/kerl/17.1/bin/erl
> > 
> >         or should I install erlang again. if so can anyone tell me how to make the erl path specifically such that it points to /usr/bin and still the erlang shell works on typing erl alone?
> > 
> > 
> > 
> >             > > > On May 3, 2017 at 6:25 PM Abhishek Ranjan <abhishek@REDACTED mailto:abhishek@REDACTED > wrote:
> > > 
> > >             No i am still getting the same error and the line
> > >             ./configure –bindir=~/home/ec2-user/kerl/17.1/bin
> > >             is giving the following error too
> > > 
> > >             [root@REDACTED ejabberd-17.03]# ./configure –Bindir=~/home/ec2-user/kerl/ 17.1/bin
> > >             configure: error: invalid variable name: `–Bindir'
> > > 
> > >             Actually it is a amazon aws linux instance and it 's is the only option I have for now.
> > >             Any Ideas on how to make it work or any ideas on how to install ejabberd 17.03 or higher in this environment. I have already tried the binary installer and it worked at start but it didn't work on second installation.
> > >             http://stackoverflow.com/questions/43754066/issue-with-ejabberds-installation-on-amazon-aws
> > > 
> > >             kindly help.
> > > 
> > > 
> > >                 > > > > On May 3, 2017 at 5:45 PM Nuku Ameyibor <nayibor@REDACTED mailto:nayibor@REDACTED > wrote:
> > > > 
> > > >                 [ec2-user@REDACTED ~]$ export PATH=$PATH: ~/kerl/17.1/bin/erl
> > > > 
> > > >                 this line is wrong .it should be 
> > > >                  export PATH=$PATH: ~/kerl/17.1/bin
> > > > 
> > > >                 also in this step 
> > > >                 [ec2-user@REDACTED ejabberd-17.03]$ ./configure
> > > >                 it should be 
> > > >                  ./configure –bindir=~/home/ec2-user/kerl/17.1/bin
> > > > 
> > > >                 also i though you were installing on a fedora box ?
> > > >                 why not try the fedora option for the erlang installation  ? 
> > > > 
> > > > 
> > > > 
> > > >                 On Wed, May 3, 2017 at 11:35 AM, Abhishek Ranjan <abhishek@REDACTED mailto:abhishek@REDACTED > wrote:
> > > > 
> > > >                     > > > > >                     I actually followed it apart from the export command so after using export path command also the error still pops up that -> configure: error: Erlang/OTP interpreter (erl) not found but required
> > > > >                     Complete scenario went something like this:
> > > > > 
> > > > >                     [ec2-user@REDACTED ~]$ kerl list builds
> > > > >                     17.1,erlang-17.1
> > > > >                     17.1,erl
> > > > >                     [ec2-user@REDACTED ~]$ export PATH=$PATH: ~/kerl/17.1/bin/erl
> > > > >                     -bash: export: `/home/ec2-user/kerl/17.1/bin/erl': not a valid identifier
> > > > > 
> > > > >                     [ec2-user@REDACTED ~]$ export PATH=$PATH:~/home/ec2-user/kerl/17.1/bin/erl
> > > > >                     [ec2-user@REDACTED ~]$ erl
> > > > >                     -bash: erl: command not found
> > > > >                     [ec2-user@REDACTED ~]$ kerl active
> > > > >                     No Erlang/OTP kerl installation is currently active
> > > > >                     [ec2-user@REDACTED ~]$ export PATH=$PATH:~/home/ec2-user/kerl/17.1/bin/erl
> > > > > 
> > > > > 
> > > > >                     [ec2-user@REDACTED ~]$ . ~/kerl/17.1/activate
> > > > >                     [ec2-user@REDACTED ~]$ kerl active
> > > > >                     The current active installation is:
> > > > >                     /home/ec2-user/kerl/17.1
> > > > >                     [ec2-user@REDACTED ~]$ erl
> > > > >                     Erlang/OTP 17 [erts-6.1] [source] [64-bit] [async-threads:10] [hipe] [kernel-poll:false]
> > > > > 
> > > > >                     Eshell V6.1 (abort with ^G)
> > > > >                     1> q().
> > > > >                     ok
> > > > >                     2> [ec2-user@REDACTED ~]$ cd downloads/
> > > > > 
> > > > >                     [ec2-user@REDACTED ejabberd-17.03]$ cd ejabberd-17.03/
> > > > >                     [ec2-user@REDACTED ejabberd-17.03]$ ./configure
> > > > >                     ./configure: line 1529: config.log: Permission denied
> > > > >                     ./configure: line 1539: config.log: Permission denied
> > > > >                     [ec2-user@REDACTED ejabberd-17.03]$ ./autogen.sh
> > > > >                     autom4te: cannot open autom4te.cache/requests: Permission denied
> > > > >                     aclocal: error: echo failed with exit status: 1
> > > > >                     autom4te: cannot open autom4te.cache/requests: Permission denied
> > > > >                     [ec2-user@REDACTED ejabberd-17.03]$ yum install automake
> > > > >                     Loaded plugins: priorities, update-motd, upgrade-helper
> > > > >                     You need to be root to perform this command.
> > > > >                     [ec2-user@REDACTED ejabberd-17.03]$ sudo su
> > > > >                     [root@REDACTED ejabberd-17.03]# yum install automake
> > > > >                     Loaded plugins: priorities, update-motd, upgrade-helper
> > > > >                     amzn-main | 2.1 kB 00:00
> > > > >                     amzn-updates | 2.3 kB 00:00
> > > > >                     Package automake-1.13.4-3.15.amzn1.noarch already installed and latest version
> > > > >                     Nothing to do
> > > > >                     [root@REDACTED ejabberd-17.03]# ./autogen.sh
> > > > >                     [root@REDACTED ejabberd-17.03]# ./configure
> > > > >                     checking whether make sets $(MAKE)... yes
> > > > >                     checking for a BSD-compatible install... /usr/bin/install -c
> > > > >                     checking for a sed that does not truncate output... /bin/sed
> > > > >                     checking for erl... no
> > > > >                     checking for erlc... /usr/bin/erlc
> > > > >                     checking for epmd... /usr/bin/epmd
> > > > >                     checking for erl... no
> > > > >                     configure: error: Erlang/OTP interpreter (erl) not found but required
> > > > > 
> > > > > 
> > > > >                         > > > > > > On May 3, 2017 at 4:17 PM Abhishek Ranjan <abhishek@REDACTED mailto:abhishek@REDACTED > wrote:
> > > > > > 
> > > > > >                         it is giving me this path "/kerl/17.1/bin/erl"
> > > > > >                         which is actually inside /home/ec2-user/
> > > > > > 
> > > > > >                         what I feel is that this erl should have been inside /usr/bin/ directory and instead it is inside
> > > > > >                         /home/ec2-user//kerl/17.1/bin/erl
> > > > > > 
> > > > > >                         So is there any way I can change this path to /usr/bin.
> > > > > >                         Please tell me if I am thinking right first and if so how can this be done in linux(amazon linux or fedora).
> > > > > > 
> > > > > > 
> > > > > >                             > > > > > > > On May 3, 2017 at 4:01 PM Nuku Ameyibor <nayibor@REDACTED mailto:nayibor@REDACTED > wrote:
> > > > > > > 
> > > > > > >                             @ Ranjan,
> > > > > > > 
> > > > > > >                             KERL_ENABLE_PROMPT=Y
> > > > > > >                             . ~/kerl/17.1/activate
> > > > > > >                             They are two separate commands not one command.
> > > > > > >                             Run them one after the other .
> > > > > > >                             After that run
> > > > > > >                             which erl
> > > > > > >                             That command will show you the path to your current activated erlang version .
> > > > > > > 
> > > > > > > 
> > > > > > > 
> > > > > > >                             ---------------------------------------------
> > > > > > >                             From: Abhishek Ranjan mailto:abhishek@REDACTED
> > > > > > >                             Sent: ‎5/‎3/‎2017 9:46 AM
> > > > > > >                             To: Jack Tang mailto:himars@REDACTED ; Erlang-Questions Questions mailto:erlang-questions@REDACTED
> > > > > > >                             Subject: Re: [erlang-questions] Erlang/OTP interpreter (erl) not found butrequired
> > > > > > > 
> > > > > > >                             home/ec2-user is my home directory or should I say the default directory when I make the ssh connection to server.
> > > > > > >                             so i ran : KERL_ENABLE_PROMPT=y . ~/kerl/17.1/activate
> > > > > > >                             command when I was in this home directory.
> > > > > > >                             I think I missed a trick here as I am not familiar with linux and how to set path in linux and that's why maybe when I go to home/ec2-user/download/ejabberd.17.03/
> > > > > > >                             and run ./configure command it is giving me this error.
> > > > > > >                             what I understand is the line which you are saying that I missed is the same line as
> > > > > > >                             KERL_ENABLE_PROMPT=y . ~/kerl/17.1/activate
> > > > > > >                             but may be I gave a wrong path or ran it from wrong place (home/ec2-user).
> > > > > > >                             I followed: https://yrsdi.github.io/programming/setup-erlang-with-kerl-mac-osx/
> > > > > > >                             Can you gauge where I am going wrong exactly
> > > > > > > 
> > > > > > > 
> > > > > > >                                 > > > > > > > > On May 3, 2017 at 3:06 PM Jack Tang <himars@REDACTED mailto:himars@REDACTED > wrote:
> > > > > > > > 
> > > > > > > >                                 You might miss to run `$ . /path/to/install/dir/activate`. 
> > > > > > > > 
> > > > > > > >                                 On Wed, May 3, 2017 at 5:22 PM, Abhishek Ranjan <abhishek@REDACTED mailto:abhishek@REDACTED > wrote:
> > > > > > > > 
> > > > > > > >                                     > > > > > > > > > 
> > > > > > > > >                                     I was installing ejabberd 17.03 through source code when I found that I needed to intall Erlang 17.1 for it. I installed erlang /otp 17.1 using kerl inside the /home/ec2-user/kerl/17.1 directory.
> > > > > > > > > 
> > > > > > > > >                                     I then used  ./autogen.sh command which ran without any output
> > > > > > > > > 
> > > > > > > > >                                            then:  ./configure which gave this error
> > > > > > > > > 
> > > > > > > > >                                     configure: error: Erlang/OTP interpreter (erl) not found but required  
> > > > > > > > > 
> > > > > > > > >                                     Can anyone help?
> > > > > > > > > 
> > > > > > > > >                                     Regards,
> > > > > > > > > 
> > > > > > > > >                                     Abhishek
> > > > > > > > > 
> > > > > > > > > 
> > > > > > > > >                                     _______________________________________________
> > > > > > > > >                                     erlang-questions mailing list
> > > > > > > > >                                     erlang-questions@REDACTED mailto:erlang-questions@REDACTED
> > > > > > > > >                                     http://erlang.org/mailman/listinfo/erlang-questions
> > > > > > > > > 
> > > > > > > > > 
> > > > > > > > >                                 > > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > >                                 --
> > > > > > > >                                 Jack Tang
> > > > > > > > 
> > > > > > > > 
> > > > > > > >                                 http://www.linkedin.com/in/jacktang
> > > > > > > >                                 _______________________________________________
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