Error running at_exit handler

Question

Error running at_exit handler

renich opened this issue 4 years ago · comments

When I ran the basic example with Firefox, it gives me this error:

Error running at_exit handler: Tried to run command without establishing a connection

Here's the source code:

require "marionette"

session = Marionette::WebDriver.create_session(:firefox)

# Navigate to crystal-lang.org
session.navigate("https://crystal-lang.org")

# Start an action chain and perform it
session.perform_actions do
  # Click the "INSTALL" link
  click ".main-actions a:nth-child(1)"
end

sleep 5
session.close

Also, the geckodriver version:

$ geckodriver --version
geckodriver 0.26.0 (e9783a644016 2019-10-10 13:38 +0000)

The source code of this program is available from
testing/geckodriver in https://hg.mozilla.org/mozilla-central.

This program is subject to the terms of the Mozilla Public License 2.0.
You can obtain a copy of the license at https://mozilla.org/MPL/2.0/.

Renich Bon Ciric commented 4 years ago

It ran.

Chris Watson · Answer 1 · Thu Jun 25 2020 08:52:55 GMT+0800 (China Standard Time)

Did it run first and then throw that? Or did it not even run?

Chris Watson · Answer 2 · Thu Jun 25 2020 09:14:28 GMT+0800 (China Standard Time)

Ok, I just need to fix something with the at_exit handler then apparently. Right now it's just making sure the background processes close at exit.

Renich Bon Ciric · Answer 3 · Thu Jun 25 2020 09:15:14 GMT+0800 (China Standard Time)

OK. Thank you.

Chris Watson · Answer 4 · Thu Jun 25 2020 09:41:36 GMT+0800 (China Standard Time)

Idk why, but I can't reproduce. Can you delete your lib directory, your shard.lock and your ~/.cache/crystal directory, rerun shards install, and try again?

Also what version of Crystal are you using?

Renich Bon Ciric · Answer 5 · Thu Jun 25 2020 10:38:50 GMT+0800 (China Standard Time)

Here you go:

[renich@introdesk ~]$ crystal init app test
    create  /home/renich/test/.gitignore
    create  /home/renich/test/.editorconfig
    create  /home/renich/test/LICENSE
    create  /home/renich/test/README.md
    create  /home/renich/test/.travis.yml
    create  /home/renich/test/shard.yml
    create  /home/renich/test/src/test.cr
    create  /home/renich/test/spec/spec_helper.cr
    create  /home/renich/test/spec/test_spec.cr
Initialized empty Git repository in /home/renich/test/.git/
[renich@introdesk ~]$ cd test/
[renich@introdesk test]$ cat << EOF >> shard.yml 
> 
> dependencies:
>   marionette:
>     github: watzon/marionette
>     branch: master
> 
> EOF
[renich@introdesk test]$ rm -fr ~/.cache/crystal/
[renich@introdesk test]$ shards install
Resolving dependencies
Fetching https://github.com/watzon/marionette.git
Installing marionette (0.2.0 at 5a1ea2d)
Writing shard.lock
[renich@introdesk test]$ cat << 'EOF' > src/test.cr 
> require "marionette"
> 
> session = Marionette::WebDriver.create_session(:firefox)
> 
> # Navigate to crystal-lang.org
> session.navigate("https://crystal-lang.org")
> 
> # Start an action chain and perform it
> session.perform_actions do
>   # Click the "INSTALL" link
>   click ".main-actions a:nth-child(1)"
> end
> 
> sleep 5
> session.close
> 
> EOF
[renich@introdesk test]$ crystal run src/test.cr 
Error running at_exit handler: Tried to run command without establishing a connection

BTW, I have another instance of Firefox open.

Chris Watson · Answer 6 · Thu Jun 25 2020 11:16:20 GMT+0800 (China Standard Time)

Hmm I'll keep this open until I can figure out the issue. For me it doesn't even exit the process when using geckodriver for some reason. Still haven't been able to figure out why that is.

Renich Bon Ciric · Answer 7 · Fri Jun 26 2020 03:26:23 GMT+0800 (China Standard Time)

OK. Thanks for trying! My crystal version is 0.35.1

Chris Watson · Answer 8 · Fri Jun 26 2020 04:26:29 GMT+0800 (China Standard Time)

What OS? That could be helpful too.

Renich Bon Ciric · Answer 9 · Sat Jun 27 2020 06:54:08 GMT+0800 (China Standard Time)

Fedora 32.

Chris Watson · Answer 10 · Sat Jun 27 2020 08:46:16 GMT+0800 (China Standard Time)

Lol go figure, same OS as me. Ok this just got weirder. Well I'm going camping for the weekend, but I'll try and figure this out on Monday.

…

On Fri, Jun 26, 2020, 4:54 PM Renich Bon Ciric ***@***.***> wrote: Fedora 32. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#21 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABCTI7TYZLAZXEWSQGY2ZA3RYURJZANCNFSM4OHSJOPQ> .

Renich Bon Ciric · Answer 11 · Sat Jun 27 2020 13:05:39 GMT+0800 (China Standard Time)

Hah! Cool coincidence! Well, have a good time on your camping trip! ;D

Chris Watson · Answer 12 · Fri Apr 30 2021 01:01:07 GMT+0800 (China Standard Time)

@renich I know it's been a while, but is this still an issue? If you wouldn't mind testing with the most recent version on Crystal 1.0 I'd be grateful.

Renich Bon Ciric · Answer 13 · Fri Apr 30 2021 02:01:59 GMT+0800 (China Standard Time)

Err... checking...

What do you know? It works fine with Crystal v1.0.0! ;D

Renich Bon Ciric · Answer 14 · Fri Apr 30 2021 02:02:52 GMT+0800 (China Standard Time)

The run; pretty much the same that I did here: #21 (comment)

[renich@introdesk tmp]$ crystal init app test
cd test/
    create  /home/renich/tmp/test/.gitignore
    create  /home/renich/tmp/test/.editorconfig
    create  /home/renich/tmp/test/LICENSE
    create  /home/renich/tmp/test/README.md
    create  /home/renich/tmp/test/.travis.yml
    create  /home/renich/tmp/test/shard.yml
    create  /home/renich/tmp/test/src/test.cr
    create  /home/renich/tmp/test/spec/spec_helper.cr
    create  /home/renich/tmp/test/spec/test_spec.cr
Initialized empty Git repository in /home/renich/tmp/test/.git/
[renich@introdesk test]$ cat << EOF >> shard.yml 
^C
[renich@introdesk test]$ vim shard.yml 
[renich@introdesk test]$ rm -fr ~/.cache/crystal/
[renich@introdesk test]$ shards install
Resolving dependencies
Fetching https://github.com/watzon/marionette.git
Installing marionette (0.3.0 at 1544934)
Writing shard.lock
[renich@introdesk test]$ vim src/test.cr 
[renich@introdesk test]$ crystal run src/test.cr 
Error running at_exit handler: Tried to run command without establishing a connection
[renich@introdesk test]$ crystal version
Crystal 1.0.0 (2021-03-22)

LLVM: 10.0.0
Default target: x86_64-unknown-linux-gnu

Chris Watson · Answer 15 · Fri Apr 30 2021 04:25:03 GMT+0800 (China Standard Time)

Hmm so it's not working?

Renich Bon Ciric · Answer 16 · Fri Apr 30 2021 07:31:57 GMT+0800 (China Standard Time)

huh? It is. Maybe I pasted it wrong. It's working fine.

Tried again and I know why you say it isn't working. Because of this:

Error running at_exit handler: Tried to run command without establishing a connection

The browser opens, clicks on the first link under the first 'main-actions' class. It turns out it's not the "Install" link but the event link up there.

Other than that, it closes and, after the browser exits, it issues that error. I'm using This version of geckodriver:

geckodriver 0.29.1 (970ef713fe58 2021-04-08 23:34 +0200)

If I switch to :chrome, I get the same result without the error.

Chris Watson · Answer 17 · Fri Apr 30 2021 23:50:05 GMT+0800 (China Standard Time)

Hmm interesting. Well I'll keep this open just in case, but for now I have no idea what would be causing that error with geckodriver.

Renich Bon Ciric · Answer 18 · Sat May 01 2021 04:48:00 GMT+0800 (China Standard Time)

Let me know if you need anything from my side.

Chris Watson · Answer 19 · Tue Oct 19 2021 04:16:35 GMT+0800 (China Standard Time)

I'm going to close this for now. Let me know if it's still an issue and I'll reopen.