My toolbox in visual studio 2015 does not show anything. It just says "There are no usable controls in this group". This took place after I installed DevExpress v16.2., but I worked with the toolbox for a while after installing.It just stopped all of sudden. How do I get the toolbox back?
Please use our ToolboxAnalizer tool from the How to resolve issues with Toolbox items KB article. It will try to repair the toolbox. If it doesn't succeed, it will collect the required log files and ask you to send them to us. Do this. We will research them. In addition, provide us with the installation log file, which you can locate in the C:\Program Files (x86)\DevExpress 15.1\Components folder to check if there were no errors during installation.
References:
How to resolve issues with Toolbox items