Status report says iCalcreator installed, but Views can't see it

Hmmm, upon looking at the code, I see that the status report code uses the libraries_detect() function to determine whether iCalcreator is installed, but the Views plugin uses libraries_load(). That may be contributing to your issue, but since I didn't actually write that particular section of the code, I'm not certain.

Could you tell me the exact folder path on your site in which the iCalcreator.class.php file resides? It should be:
sites/all/libraries/iCalcreator/iCalcreator.class.php

I've been trying to debug this issue, but I haven't been able to reproduce it. Could you tell me some more detailed information about your site install? What OS is it running on? Are the file permissions of the iCalcreator folder correct for Apache to read the file? Which versions of Drupal core and Views are you using?

Also, are you seeing this message in the View preview, or in the actual iCal feed?

Depending on your answers, I may have some instructions for you to help me get more information about why this isn't working on your site.

Hmmm, this is very vexing. I have absolutely no clue why this is happened to you.

So, I'm going to need you to perform these steps, which will help me diagnose the problem:

1) Install and enable the Devel module.
2) Apply the attached patch to your copy of Date iCal.
3) If it exists, delete /tmp/drupal_debug.txt.
4) Attempt to load the View preview of the feed.
5) Attach the new copy of /tmp/drupal_debug.txt to this issue. It should look something like this:

Array
(
    [name] => iCalcreator
    [vendor url] => http://kigkonsult.se/iCalcreator/index.php
    [download url] => http://kigkonsult.se/downloads/index.php#icalcreator
    [version arguments] => Array
        (
            [file] => iCalcreator.class.php
            [pattern] => /define\( 'ICALCREATOR_VERSION', 'iCalcreator ([\d\.]+)' \);/
            [lines] => 100
        )

    [files] => Array
        (
            [php] => Array
                (
                    [iCalcreator.class.php] => Array
                        (
                        )

                )

        )

    [module] => date_ical
    [machine name] => iCalcreator
    [path] => 
    [library path] => sites/all/libraries/iCalcreator
    [version callback] => libraries_get_version
    [dependencies] => Array
        (
        )

    [versions] => Array
        (
        )

    [integration files] => Array
        (
        )

    [callbacks] => Array
        (
            [info] => Array
                (
                    [0] => libraries_prepare_files
                )

            [pre-detect] => Array
                (
                )

            [post-detect] => Array
                (
                    [0] => libraries_detect_dependencies
                )

            [pre-load] => Array
                (
                )

            [post-load] => Array
                (
                )

        )

    [installed] => 1
    [version] => 2.16.6
    [loaded] => 1
)

Looking at the differences between my output and yours, the only useful thing I see is that the "library path" attribute is missing on your output. In my attempts to get the same effect on my machine, I may have found your problem.

When I renamed my sites/all/libraries/iCalcreator folder to sites/all/libraries/iCalcreator-2.16.6 (the same name as you'd get if all you did was extract the iCalcreator zip file), then cleared my cache, I started seeing the same debug output you are. Unfortunately, I'm not seeing the strange "iCalcreator is installed, but can't load" behavior that you're getting, no matter what I do.

So, the only thing I can come up with as a potential solution is make sure that the exact path for iCalcreator.class.php is sites/all/libraries/iCalcreator/iCalcreator.class.php, then clear your site's cache. You can do that by either using drush cc all or logging in to your site and going to Configuration -> Development -> Performance and click the "Clear all caches" button.

I've searched out the documentation on the Libraries API module, to see if Date iCal is misusing its APIs. But as far as I can tell, Date iCal is using it correctly. So if the instructions above don't work, my only remaining idea is the "hit it with a hammer" approach: disabling, uninstalling, and deleting Date iCal and iCalcreator, and re-installing them from scratch.

I hope this helps.

I'm glad to hear that it's working now!

FYI: I came across this but I installed the library after setting up a view. I found out that the libraries are cached so in that situation you need to clear the cache before an added library will be picked up.

Thank you for the heads up! I'll add that to the installation docs immediately.