Did you try pressing Enable for Devart.EntityDeveloper.VSPackage on your screenshot?
Please reinstall the Devart product with checking environment:
a) uninstall dotConnect for MySQL and other Devart ADO.NET products (e.g.: Entity Developer as a separate product)
b) make sure (via some file manager like
https://x-diesel.com/) that there are no Devart.* and policy.*.Devart.* files/folders in the following locations:
* GAC 2.0 (\Windows\assembly\GAC_MSIL\)
* GAC 4.0 (\Windows\Microsoft.NET\assembly\GAC_MSIL\)
c) clear the directories:
* \Program Files (x86)\Microsoft Visual Studio\2017\Professional\Common7\IDE\PrivateAssemblies\Devart\
* \Program Files (x86)\Devart\
* \Program Files (x86)\Common Files\Devart\
* \Documents and Settings\All Users\Devart\EntityDeveloper\
* \Documents and Settings\All Users\Devart\dotConnect\
d) run installation of dotConnect for MySQL via its right click > Run as administrator menu
Does this help? If not,
send us your C:\Users\...\AppData\Roaming\Microsoft\VisualStudio\15.0_cd17adc1\ActivityLog.xml.
