Today in the morning I tried to compile my project to run in my device and I found the destination toolbar disappeared and I cannot choose my IOS device or IOS Simulator dev
I'm running with same problem. You can select device or change scheme using below steps:
Alternative Solution:
The only solution is to use Xcode 7 or above
. I've installed Xcode 7.1 and found Scheme/Simulator list available. Refer screenshot.
It seems that Xcode 6 or below doesn't support OS X El Capitan.
Looks like Xcode hides that menu when the window is a certain size. I have to make my window quite large before it comes back.
On XCode 9.0 beta, this worked for me: select View -> Show Toolbar
from menu
I make my XCode screen little big and now find both options.
Fixed it by deleting the following file ~/Library/Preferences/com.apple.dt.Xcode.plist
and restarting Xcode.
The downside is that Xcode preferences dropped to defaults obviously.
I am still seeing this problem in Xcode 7.2 on iMac with resolution 1920x1080. Resizing the XCode windows dens't help. I can have the menu bar back if I push the green button and go to full screen mode. But that's pretty annoying. This is how I finally figure out a solution that works for me. I notice that only if I open the project file that I have been working daily that the menu bar is missing. If I create a new project, the menu bar is there. And here is my solution:
Remove your project file on disc (or move it to a different folder)
Open the Welcome to Xcode window by shift+command+1
Make sure your project is no longer under this list. If it is still there, click on it and Xcode will tell you the project is not found and it will be removed.
I guess the problem is that some cache value in Xcode about the project file is messed up somehow. Hope this helps.