Per month rental & Recurring invoicing for every one month

We have requirements like products Per month rental with Recurring invoicing. We implemented setting and changes like these two links 1 & 2
1) www.hikashop.com/support/documentation/1...a-subscriptions.html .
2) www.hikashop.com/forum/2-general-talk-ab...curring-payment.html .
We found paypal recurring payment HikaShop PayPal recurring payment plugin and installed it from above two links but it does not reflect in hikashop control panel.

I had installed Akeeba subscriptions extension first by upload but due to installation error I have installed Akeeba Subscriptions manually but it did not list in extension list. Is there a follow any specific process?

Also Emerald developer replied like this answer.
PayPal does support recurring payments. But does not depends only on PayPal. The payment gateway have to implement it. It have to send special parameters to activate that. And since you are using Hikashop and its PayPal gateway, it all depends on that. If you use Emerald payment gateway then you have it.Right now we with Hikashop try to solve this, but I cannot give you any ETA on that.

We need urgently Per month rental & Recurring invoicing for every one month so help on that.

Thanks & Regards

I getting this error while typing this command "phing link"
Buildfile: /var/www/html/powermedi12102016/akeebasubs/build/build.xml
Warning: target 'onBeforeRelease' has no tasks or dependencies
Warning: target 'onAfterRelease' has no tasks or dependencies
[property] Loading /var/www/html/powermedi12102016/akeebasubs/build/../../buildfiles/phing/default.properties
[property] Loading /var/www/html/powermedi12102016/akeebasubs/build/../../build.properties
[property] Unable to find property file: /var/www/html/powermedi12102016/akeebasubs/build/../../build.properties... skipped
[property] Loading /var/www/html/powermedi12102016/akeebasubs/build/build.properties
[property] Loading /var/www/html/powermedi12102016/akeebasubs/build/override.properties
[property] Unable to find property file: /var/www/html/powermedi12102016/akeebasubs/build/override.properties... skipped
[PHP Error] include_once(phingext/GitDateTask.php): failed to open stream: No such file or directory [line 1317 of /usr/share/php/phing/Phing.php]
[PHP Error] include_once(): Failed opening 'phingext/GitDateTask.php' for inclusion (include_path='/usr/share/php/../classes:.:/usr/share/php:/usr/share/pear') [line 1317 of /usr/share/php/phing/Phing.php]

BUILD FAILED
exception 'ConfigurationException' with message 'Error importing phingext/GitDateTask.php' in /usr/share/php/phing/Phing.php:1325
Stack trace:
#0 /usr/share/php/phing/Phing.php(1272): Phing::__import('phingext/GitDat...', NULL)
#1 /usr/share/php/phing/Project.php(630): Phing::import('phingext.GitDat...', NULL)
#2 /usr/share/php/phing/tasks/system/TaskdefTask.php(155): Project->addTaskDefinition('gitdate', 'phingext.GitDat...', NULL)
#3 /usr/share/php/phing/UnknownElement.php(100): TaskdefTask->main()
#4 /usr/share/php/phing/Task.php(283): UnknownElement->main()
#5 /usr/share/php/phing/Target.php(336): Task->perform()
#6 /usr/share/php/phing/parser/ProjectConfigurator.php(190): Target->main()
#7 /usr/share/php/phing/parser/ProjectConfigurator.php(74): ProjectConfigurator->parse()
#8 /usr/share/php/phing/tasks/system/ImportTask.php(180): ProjectConfigurator::configureProject(Object(Project), Object(PhingFile))
#9 /usr/share/php/phing/tasks/system/ImportTask.php(137): ImportTask->importFile(Object(PhingFile))
#10 /usr/share/php/phing/UnknownElement.php(100): ImportTask->main()
#11 /usr/share/php/phing/Task.php(283): UnknownElement->main()
#12 /usr/share/php/phing/Target.php(336): Task->perform()
#13 /usr/share/php/phing/parser/ProjectConfigurator.php(197): Target->main()
#14 /usr/share/php/phing/parser/ProjectConfigurator.php(74): ProjectConfigurator->parse()
#15 /usr/share/php/phing/Phing.php(696): ProjectConfigurator::configureProject(Object(Project), Object(PhingFile))
#16 /usr/share/php/phing/Phing.php(200): Phing->runBuild()
#17 /usr/share/php/phing/Phing.php(347): Phing::start(Array, NULL)
#18 /usr/share/php/phing.php(58): Phing::fire(Array)
#19 {main}
Total time: 0.0896 seconds

#0 /usr/share/php/phing/Phing.php(1272): Phing::__import('phingext/GitDat...', NULL)
#1 /usr/share/php/phing/Project.php(630): Phing::import('phingext.GitDat...', NULL)
#2 /usr/share/php/phing/tasks/system/TaskdefTask.php(155): Project->addTaskDefinition('gitdate', 'phingext.GitDat...', NULL)
#3 /usr/share/php/phing/UnknownElement.php(100): TaskdefTask->main()
#4 /usr/share/php/phing/Task.php(283): UnknownElement->main()
#5 /usr/share/php/phing/Target.php(336): Task->perform()
#6 /usr/share/php/phing/parser/ProjectConfigurator.php(190): Target->main()
#7 /usr/share/php/phing/parser/ProjectConfigurator.php(74): ProjectConfigurator->parse()
#8 /usr/share/php/phing/tasks/system/ImportTask.php(180): ProjectConfigurator::configureProject(Object(Project), Object(PhingFile))
#9 /usr/share/php/phing/tasks/system/ImportTask.php(137): ImportTask->importFile(Object(PhingFile))
#10 /usr/share/php/phing/UnknownElement.php(100): ImportTask->main()
#11 /usr/share/php/phing/Task.php(283): UnknownElement->main()
#12 /usr/share/php/phing/Target.php(336): Task->perform()
#13 /usr/share/php/phing/parser/ProjectConfigurator.php(197): Target->main()
#14 /usr/share/php/phing/parser/ProjectConfigurator.php(74): ProjectConfigurator->parse()
#15 /usr/share/php/phing/Phing.php(696): ProjectConfigurator::configureProject(Object(Project), Object(PhingFile))
#16 /usr/share/php/phing/Phing.php(200): Phing->runBuild()
#17 /usr/share/php/phing/Phing.php(347): Phing::start(Array, NULL)
#18 /usr/share/php/phing.php(58): Phing::fire(Array)
#19 {main}Error importing phingext/GitDateTask.php

Can you please help on that ? How can we get rid out from this error?