Upon upgrading to 7.7.5, in old themes the add dashlets its not working to fix you must change MySugar.js
located in include/MySugar/javascript/MySugar.js
Method showDashletsDialog
where you see
[color=#ff0000]dashletsListDiv=$(’*[id=dashletsList].modal-body’);[/color]
change to
[color=#ff0000]dashletsListDiv=$(’*[id=dashletsList]’);[/color]
This fix will work for both old themes and new themes.
Thank you for the info however this fix did not work for me. I am still receiving the warning message and can not add a dashlet.
Witch theme are you using so I can make a few tests.
SuiteR
Thank you!
I also tried SuiteP and SuiteT - I am getting the same error and can not add dashlets.
Try updating to 7.7.6 they fixed the issue.
Now I can not access anything! My login screen shows this:
Warning: Declaration of SugarEmailAddress::save($id, $module, $new_addrs = Array, $primary = ‘’, $replyTo = ‘’, $invalid = ‘’, $optOut = ‘’, $in_workflow = false) should be compatible with SugarBean::save($check_notify = false) in /home/xxx/public_html/xxxx/include/SugarEmailAddress/SugarEmailAddress.php on line 1162
Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/starnet/public_html/snscats/include/SugarEmailAddress/SugarEmailAddress.php:1162) in /home/xxxx/public_html/xxxx//include/MVC/SugarApplication.php on line 619
Warning: Cannot modify header information - headers already sent by (output started at /home/starnet/public_html/snscats/include/SugarEmailAddress/SugarEmailAddress.php:1162) in /home/xxxx/public_html/xxxx/include/utils.php on line 2802
Warning: session_regenerate_id(): Cannot regenerate session id - headers already sent in /home/xxxx/public_html/xxxx/modules/Users/Authenticate.php on line 49
Warning: Cannot modify header information - headers already sent by (output started at /home/xxxx/public_html/xxxx/include/SugarEmailAddress/SugarEmailAddress.php:1162) in /home/starnet/public_html/snscats/modules/Users/Authenticate.php on line 115
oh yeah…and I still can not add dashlets. 
The erros that you are reporting, looks like some configuration issues.
see the following threads
https://www.suitecrm.com/forum/installation-upgrade-help/408-white-screen-on-installation
https://community.sugarcrm.com/thread/22383
You must in your php.ini display_errors set it off there are some issues with that
also give permissions to your data
What I do is set:
chmod 755 $(find [color=#ff0000]yourCRMfolderhere[/color] -type d)
chmod 644 $(find [color=#ff0000]yourCRMfolderhere[/color] -type f)
this will give 755 to the directories and 644 to the files
chown -R apache:apache [color=#ff0000]yourCRMfolderhere[/color] – if you are using apache as a web user
:cheer: :cheer: :cheer:
Thank you! That worked! it’s always the dang php.ini file! 
SuiteCRM you rock! 