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

[Jesper Louis Andersen]

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>
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 $(MAKE)... yes
> checking for a BSD-compatible install... /usr/bin/install -c
> checking for a sed that does not truncate output... /bin/sed
> checking for erl... no
> checking for erlc... no
> checking for epmd... no
>
> checking for erl... no
> configure: error: Erlang/OTP interpreter (erl) not found but required
>
> and that is why I was suspecting that whenever I run the ./configure
> command the script goes to
> /usr/bin
> and search for erl ,erlc....etc
> That is why I asked that is there any way that I can set my erl path to
> /usr/bin which is currently gives that following path on "which erl"
> ~/kerl/17.1/bin/erl
>
> or should I install erlang again. if so can anyone tell me how to make the
> erl path specifically such that it points to /usr/bin and still the erlang
> shell works on typing erl alone?
>
>
> On May 3, 2017 at 6:25 PM Abhishek Ranjan <abhishek@REDACTED>
> wrote:
>
> No i am still getting the same error and the line
> ./configure –bindir=~/home/ec2-user/kerl/17.1/bin
> is giving the following error too
>
> [root@REDACTED ejabberd-17.03]# ./configure
> –Bindir=~/home/ec2-user/kerl/ 17.1/bin
> configure: error: invalid variable name: `–Bindir'
>
> Actually it is a amazon aws linux instance and it 's is the only option I
> have for now.
> Any Ideas on how to make it work or any ideas on how to install ejabberd
> 17.03 or higher in this environment. I have already tried the binary
> installer and it worked at start but it didn't work on second installation.
>
> http://stackoverflow.com/questions/43754066/issue-with-ejabberds-installation-on-amazon-aws
>
> kindly help.
>
> On May 3, 2017 at 5:45 PM Nuku Ameyibor <nayibor@REDACTED> wrote:
>
> [ec2-user@REDACTED ~]$ *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> 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>
>> 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> 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 <abhishek@REDACTED>
>> Sent: ‎5/‎3/‎2017 9:46 AM
>> To: Jack Tang <himars@REDACTED>; Erlang-Questions Questions
>> <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> wrote:
>>
>> You might miss to run `$ . /path/to/install/dir/activate`.
>>
>> On Wed, May 3, 2017 at 5:22 PM, Abhishek Ranjan <
>> 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
>>> http://erlang.org/mailman/listinfo/erlang-questions
>>>
>>>
>>
>>
>> --
>> Jack Tang
>>
>>
>> http://www.linkedin.com/in/jacktang
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