Hi Armando,
Sorry for the late response, I was away for vacation.
The csv contents exists of 1 column, with only e-mail adresses.
I've added an example in the bitbucket repository:
https://bitbucket.org/tedvdb/csv_enrol/raw/ad9881ffee74/Example/Example.csv

PHP catchable fatal error
Debug info: Argument 2 passed to has_capability() must be an instance of context, null given, called in /moodle/blocks/csv_enrol/block_csv_enrol.php on line 46 and defined
Stack trace:

line 365 of /lib/setuplib.php: coding_exception thrown
line 348 of /lib/accesslib.php: call to default_error_handler()
line 46 of /blocks/csv_enrol/block_csv_enrol.php: call to has_capability()
line 280 of /blocksblock.class.php: call to block_csv_enrol->get_content()
line 232 of /blocksblock.class.php: call to block_base->formatted_contents()
line 926 of /lib/blocklib.php: call to block_base->get_content_for_output()
line 978 of /lib/blocklib.php: call to block_manager->create_block_contents()
line 349 of /lib/blocklib.php: call to block_manager->ensure_content_created()
line 7 of /theme/brick/layout/general.php: call to block_manager->region_has_content()
line 686 of /lib/outputrenderers.php: call to include()
line 638 of /lib/outputrenderers.php: call to core_renderer->render_page_layout()
line ? of unknownfile: call to core_renderer->header()
line 1363 of /lib/setuplib.php: call to call_user_func_array()
line 145 of /user/index.php: call to bootstrap_renderer->__call()
line 145 of /user/index.php: call to bootstrap_renderer->header()

Can you specify which role you are assigning? Also, can this be added at the category level to manage category enrolments?

Throws an error that seems to be related to theme's call to block_manager.

Debug info: Argument 2 passed to has_capability() must be an instance of context, boolean given, called in /home/moodle/public_html/blocks/csv_enrol/block_csv_enrol.php on line 46 and defined
Error code: codingerror
Stack trace:
line 397 of /lib/setuplib.php: coding_exception thrown
line 355 of /lib/accesslib.php: call to default_error_handler()
line 46 of /blocks/csv_enrol/block_csv_enrol.php: call to has_capability()
line 281 of /blocks/moodleblock.class.php: call to block_csv_enrol->get_content()
line 232 of /blocks/moodleblock.class.php: call to block_base->formatted_contents()
line 929 of /lib/blocklib.php: call to block_base->get_content_for_output()
line 981 of /lib/blocklib.php: call to block_manager->create_block_contents()
line 352 of /lib/blocklib.php: call to block_manager->ensure_content_created()
line 7 of /theme/aegeanmod/layout/general.php: call to block_manager->region_has_content()
line 765 of /lib/outputrenderers.php: call to include()
line 712 of /lib/outputrenderers.php: call to core_renderer->render_page_layout()
line 169 of /user/view.php: call to core_renderer->header()

I had the same error when access to the page: Participant (of a course):
Debug info: Argument 2 passed to has_capability() must be an instance of context, boolean given, called in /home/moodle/public_html/blocks/csv_enrol/block_csv_enrol.php on line 46 and defined
Error code: codingerror
Stack trace:
line 397 of /lib/setuplib.php: coding_exception thrown
line 355 of /lib/accesslib.php: call to default_error_handler()
line 46 of /blocks/csv_enrol/block_csv_enrol.php: call to has_capability()
line 281 of /blocks/moodleblock.class.php: call to block_csv_enrol->get_content()
line 232 of /blocks/moodleblock.class.php: call to block_base->formatted_contents()
line 929 of /lib/blocklib.php: call to block_base->get_content_for_output()
line 981 of /lib/blocklib.php: call to block_manager->create_block_contents()
line 352 of /lib/blocklib.php: call to block_manager->ensure_content_created()
line 7 of /theme/aegeanmod/layout/general.php: call to block_manager->region_has_content()
line 765 of /lib/outputrenderers.php: call to include()
line 712 of /lib/outputrenderers.php: call to core_renderer->render_page_layout()
line 169 of /user/view.php: call to core_renderer->header()
-------------
and i tried to fix the code (sorry to author if you feel uncomfortable for what i did, but it's just a temporay way to avoid the fatal error)..
If you are finding how to fix the error, here for you:
In csv_enrol/block_csv_enrol.php:
- at line 33, change the code to:
$currentcontext = get_context_instance(CONTEXT_COURSE,$courseid);
- after line 32, add this code:
$courseid = optional_param('id', 0, PARAM_INT);

@Steve the users are enrolled as students.

I couldn't reproduce these errors, but have implemented a fix that could prevent these errors. Could you please test the new version (2012102901) and report back to me if this resolves the issues?

Hello,

Thanks for share the block with the community. It is going to save us a lot of work enrolling students into courses.

I have successfully installed in Moodle 2.2.4 and, when I got to 'Add block' in a course, I cannot see the block as an admin.

Have I missed something ?

Regard,
Mari Cruz

Yes, I missed that I didn't have the CVS enrolment plugin open

I still cannot see the block after that, can you please advice?
The block has been successfully installed (I see it in the list of blocks) and there is not a permission problem as I am using a WAMP test server in my laptop

Thank you very much for your advise

Change to function applicable_formats() {
return array('course' => true);
}
it is displayed now

Hi, I have this working ok in M2.4. One problem I am having is that I cannot 'select all' or send messages to the enrolled participants from the participants page. Other courses work fine in this regard. Any ideas? It worked great BTW...

I have been testing on 2.9 and it seems to work fine.
It seems only the log message to be "User already enrolled" while user is actually enrolled, and log message to be "User enrolled" when user is already enrolled.
I have been testing for 3 times to be sure !

Hey Ted ! Nice plugin! its possible add the option to use in csv the user identify date like the registration information instead the e-mail? because the email its mutable but the registration Id its a primary key! Again nice work in it! Ty

well, i changed the lib code to use the username unstead the email and worked!!! now its easy to enrol the users in bulk! ! ty man soo mutch for this plugin!

Hi, it seems that this plugin is not compatible with Moodle 3.3 and 'clean' theme.

After the csv_enrol block has been used at a course, all blocks/text fields/activities/resources on the course cannot be edited anymore. The only solution was, to disable the plugin in the site administration.

Has anyone an idea?

@Developer: Is there a further development planned to fix issues with moodle 3.3/3.4?