Component Manager will hangs

[aarondong2005]

Preconditions

1. Fresh installed Magento 2.1.1
2. Data migrated from Old Magento 1.9.0.1
3. PHP 7.0.10 + MySQL 5.6.32

Steps to reproduce

1. After migration everything works fine. But when I want to install plugin from component manager it will hangs on the "Please wait" screen.
2. If close hangs page and open a backend page. The backend will not load too.

Actual result

1. 

[aarondong2005]

Don't know why but the var/di doesn't exist. So I tried to di:compile, then I got error below

Compilation was started. Repositories code generation... 1/7 [====>-----------------------] 14% 1 sec 42.0 MiBPHP Fatal error: Cannot declare class Migration\Step\Version11410to2000Test, because the name is already in use in /chroot/home/dashcamt/yyyyyy.com/html/vendor/magento/data-migration-tool/tests/unit/testsuite/Migration/Step/UrlRewrite/Version11410to2000Test.php on line 109

[aarondong2005]

I tried refresh install Magento only without migrate. The component manager still hangs.

[stamster]

Most commonly you have permissions issue. Check your logs, and open F12 developer tool in your browser to see what went wrong during that ajax loading.

[NadiyaS]

Hi @aarondong2005 ,
how did you do refresh install? Please use bin/magento setup:uninstall (pay attention that after this command your DB will be cleaned) and then try to install Magento again. Or you can clean the cache and run bin/magento setup:di:compile again.

[aarondong2005]

the di was done without problem. But now the manager still hang. Someone facing the same issue. here #6737

[BaDos]

Hi @aarondong2005

How many repositories are there in composer.json?
Do you have some errors in browser console?

[veloraven]

According to contributor guide, tickets without response for two weeks should be closed.
If this issue still reproducible please feel free to create the new one: format new issue according to the Issue reporting guidelines: with steps to reproduce, actual result and expected result and specify Magento version.