Cannot add/edit categories and products, everything else is fine

[adarshkhatri]

Not sure if this is a bug.

I have installed magento 2.1.0 in shared hosting through cPanel. All is ok, I can access admin and configure my store.

I have set single store mode then when I try to add categories/products there is no form populated, in fact the form area is completely empty. See image: http://i.stack.imgur.com/69wo2.png

Preconditions

1. Magento 2.1.0
2. PHP 7.0.9

Steps to reproduce

1. Install fresh Magento 2.1.0 version from cPanel in shared hosting (siteground)
2. Go to Product > Categories

Expected result

1. Categories should populate
2. And should allow to add/edit them

Actual result

1. No form populated, http://i.stack.imgur.com/69wo2.png
2. But url do changes to edit/add mode

I have also followed this issue report: #2402

But this also didn't help.

[southerncomputer]

Enable developer mode and show the console/debugger window.

Probably need to do php bin/magento deploy:mode:set production
Php bin/magento setup:static-content:deploy
Php bin/magento cache:clean

(Service php-fpm restart if using php-fpm is opcache enabled )

[adarshkhatri]

On running php bin/magento deploy:ode:set product it gives me this error:

Cannot load Zend OPcache - it was already loaded
Enabled maintenance mode
Starting compilation
Something went wrong while compiling generated code. See the error log for details.
Command returned non-zero exit code:
/usr/local/php70/bin/php-cli -f /bin/magento setup:di:compile

And when I check the system.log it shows this error:

[2016-08-06 02:25:22] main.ERROR: /usr/local/php70/bin/php-cli -f /bin/magento setup:di:compile 2>&1
Cannot load Zend OPcache - it was already loaded
Compilation was started.
%message% 0/7 [>---------------------------] 0% 1 sec 20.0 MiB%message% 0/7 [>---------------------------] 0% 1 sec 20.0 MiBProxies code generation... 0/7 [>---------------------------] 0% 1 sec 20.0 MiB
Proxies code generation... 1/7 [====>-----------------------] 14% 1 sec 22.0 MiB
Repositories code generation... 1/7 [====>-----------------------] 14% 1 sec 22.0 MiB
Fatal error: Internal Zend error - Missing class information for �P�.j� in /vendor/magento/module-catalog/Ui/Component/Listing/Attribute/AbstractRepository.php on line 8 [] []

Is it related to memory limit? My php info is this: http://www.merophoto.com.au/bcm/i.php

And this screenshot is on developer mode: https://www.dropbox.com/s/jq490kl10aobg10/Screenshot%202016-08-06%2013.08.08.png?dl=0

UPDATE

Now, I have changed my php to 5.6.24 version and I can do upgrade, compile, index, cache clean etc without any error.

However, category is still same, form doesn't populates.

[miakusha]

Hi, problem still reproducible???
Unfortunately, I could not reproduce the issue as you described it.
Try clear browser cache or use another browser if it doesn't help please provide error log

[andimov]

We are closing this issue because it hasn’t been updated in more than two weeks. If you can still reproduce this issue, please create a new GitHub issue report.