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

Abhishek Ranjan abhishek@REDACTED
Thu May 4 15:02:59 CEST 2017


yes I figured out that I was in my home directory and installing stuff that's what made problems. Went to root,followed the steps which were missing some steps in between on each link I went through but in the end by combining them and using them I managed to install ejabberd 17.03 from source.
Thank you very much for the help.
Regards,
Abhishek


> On May 4, 2017 at 3:46 PM Leonard B <leonard.boyce@REDACTED> wrote:
> 
>     Apologies for the top post.
> 
>     It seems to me that your primary problem is you're activating/setting path for your normal user, then su to root. root does not have the path for erl set, which is why it cannot find anything.
> 
>     Try adding path to erl to root's PATH.
> 
>     Leonard
> 
>     On May 4, 2017 03:07, "Abhishek Ranjan" <abhishek@REDACTED mailto:abhishek@REDACTED > wrote:
> 
>         > >         hi
> >         I have been trying different things regarding this problem and seems like I have solve the problem of
> >         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 now it worked fine when I execute ./configure command. But I have been following this link for ejabberd's installation:
> >         https://www.aurigait.com/blog/how-to-setup-ejabbered-on-ubuntu https://www.aurigait.com/blog/how-to-setup-ejabbered-on-ubuntu
> > 
> >         and in here(the link) in the step 4 i have sucessfully gone through the configure command but when I am running make command it breaks like this:
> > 
> >         ==> fast_xml (compile)
> >         Compiled src/fxml_gen_pt.erl
> >         Compiled src/fxml_sup.erl
> >         Compiled src/fxml.erl
> >         Compiled src/fxml_stream.erl
> >         Compiled src/fxmlrpc.erl
> >         Compiled src/fast_xml.erl
> >         Compiled src/fxmlrpc_codec.erl
> >         Compiled src/fxml_gen.erl
> >         Compiling c_src/fxml.c
> >         Compiling /home/ec2-user/downloads/ejabberd-17.03/ejabberd-17.03/deps/fast_xml/c _src/fxml_stream.c
> >         /home/ec2-user/downloads/ejabberd-17.03/ejabberd-17.03/deps/fast_xml/c_src/fxml_ stream.c:21:19: fatal error: expat.h: No such file or directory
> >         #include <expat.h>
> >         ^
> >         compilation terminated.
> >         ERROR: compile failed while processing /home/ec2-user/downloads/ejabberd-17.03/e jabberd-17.03/deps/fast_xml: rebar_abort
> >         make: *** [deps/.built] Error 1
> > 
> >         what does it means by fatal error expat.h not found in directory. I was just following the steps then where did it went wrong?
> > 
> >         Any Idea?
> >         Please Share.
> > 
> > 
> >             > > > On May 4, 2017 at 10:46 AM Abhishek Ranjan <abhishek@REDACTED mailto:abhishek@REDACTED > wrote:
> > > 
> > >             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 mailto: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 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/ 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
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> > > > > > > > > > > > 
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> > > > > > > > > > > 
> > > > > > > > > > > 
> > > > > > > > > > >                                             --
> > > > > > > > > > >                                             Jack Tang
> > > > > > > > > > > 
> > > > > > > > > > > 
> > > > > > > > > > >                                             http://www.linkedin.com/in/jacktang http://www.linkedin.com/in/jacktang
> > > > > > > > > > >                                             _______________________________________________
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