Mojo::UserAgent installed successfully but gives while coding

[Tanya Sahni]

Hi All,

I have successfully installed the Mojo::UserAgent :

But when I type only this line of code"use Mojo::UserAgent" it gives following error:

Is it System related issue ? Would be great if anyone shed light how to check this kind of issue?
ThanksTanya

[Илья Рассадин]

Hi!

How did you install Mojolicious exactly? With cpanm, with git or some
other way?

Do you use system perl bundled with MacOSX, or do you install your own
version with plenv/perlbrew?

See this article for details
https://www.effectiveperlprogramming.com/2015/11/apple-recommends-installing-your-own-perl/

[Tanya Sahni]

Hi

This is a new information for me.. I have done installation using cpanm although now I completely confused that my program is using which perl. And I do have perlbrew folder , sorry for not being so informative about the situation I am newbie to perl. I tried various attempts to install Mojolicious and one was also adding “requires Mojolicious” in the cpanfile file.

It would be great help if you could help me know how to differentiate between the perl I am using for my code ? is it using System perl or my installed perl ? What’s the difference using cpanm or other way affects these perl?

[Илья Рассадин]

My guess is you installed Mojolicious into perlbrew library path, but
running program with system perl.

For example, you have this shebang line (first line in script)

#!/usr/bin/perl

You need to change it to perlbrew perl. I guess, the right way to do it
is line

#!/usr/bin/env perl

Read this perlbrew article for details how and why it works
https://perlbrew.pl/Dealing-with-shebangs.html

[tanya.s...@gmail.com]

After adding #!/use/bin/env perl I am unable to install mojolicious..

[Alan Mead]

First, if you added "#!/use/bin/env" that's a typo; it should be "#!/usr/..."

The screenshot shows mojo not being present in the path; not that it's not installed. What makes you think you didn't install it? I mean, I thought you'd post some information about a failed install if the install is failing?

I know nothing about Darwin, but on a unix-y system you should be able to open a shell and type /usr/bin/env . If you cannot do that, then this shebang won't work (because that's what the shebang does is execute the command). On CentOS for example, this article says you need to use /bin/env (although my CentOS 6 machine has /usr/bin/env). If you type  /usr/bin/env and it says "command not found" then this won't work. If it spits out a page or two of technical information, look for PATH. If PATH contains a perl-specific folder, then you're using that version of perl (technically, you're using the first folder containing a perl executable, scanning PATH left to right). Otherwise you're using the system perl.

And I mention all this because all you know at this point is that the version of perl you're running doesn't have mojo, so if you think you installed it using some version of perl, then you need to ensure that you're running that version. And if the install is failing, then some information about why it's failing would be needed to fix the problem.

-Alan

On 6/8/2019 11:11 AM, tanya.s...@gmail.com wrote:

After adding #!/use/bin/env perl I am unable to install mojolicious..

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