ReSharper key bindings problem

Solution 1:

This one worked for me 100% after trying a bunch of other things:

1. Go to Tools -> Options -> Environment -> Keyboard -> Press the (RESET) button
2. Go to ReSharper - > Options -> Keyboard & Menus -> Select the "Visual Studio" scheme -> Press "Apply Scheme"
3. Press "Save"
4. Press "CTRL-T". Since this shortcut is mapped in both VS and Resharper, you will be presented with the "Shortcut Conflict"-window. Here you select "Use ReSharper (Ultimate) command" and make sure to check the box "Apply to all ReSharper (Ultimate) shortscuts".

Voila!

Solution 2:

This is a known issue that affects all ReSharper shortcuts that include F12 after switching from IntelliJ keymap to VS keymap. It's documented in this bug report that you're free to watch and vote for. As far as I'm aware, the only workaround would be to reassign the broken shortcuts manually through Tools > Options > Keyboard.