ibtool fails to compile storyboard in Xcode 7.1 Beta - ios

Question

Having updated from Xcode 7.0 Beta 3 to 7.1 Beta (all intermediate releases including the 7.0 GM had a crash-on-launch bug for my project, which has only been fixed in 7.1 Beta) I can't build my project due to the following error:
CompileStoryboard MyApp/Resources/Storyboards/Main.storyboard
cd /Users/me/Developer/my-app
export PATH="/Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode-beta.app/Contents/Developer/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
export XCODE_DEVELOPER_USR_PATH=/Applications/Xcode-beta.app/Contents/Developer/usr/bin/..
/Applications/Xcode-beta.app/Contents/Developer/usr/bin/ibtool --errors --warnings --notices --module MyApp --output-partial-info-plist /Users/me/Library/Developer/Xcode/DerivedData/MyApp-bwakexzthboxucdaodqtbbbwgsaz/Build/Intermediates/MyApp.build/Debug-iphonesimulator/MyApp.build/Main-SBPartialInfo.plist --auto-activate-custom-fonts --target-device iphone --minimum-deployment-target 8.0 --output-format human-readable-text --compilation-directory /Users/me/Developer/my-app/MyApp/Resources/Storyboards/Main.storyboard
/ com.apple.ibtool.errors */
: error: Not enough arguments provided; where is the input document to operate on?
Xcode is configured to use the Xcode 7.1 (7B60) command line tools:
$ xcode-select -p
/Applications/Xcode-beta.app/Contents/Developer
And ibtool appears to be the correct version:
$ ibtool --version
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-/
<plist version="1.0">
<dict>
<key>com.apple.ibtool.version</key>
<dict>
<key>bundle-version</key>
<string>9046</string>
<key>short-bundle-version</key>
<string>7.1</string>
</dict>
</dict>
</plist>
EDIT: Comparing the output from a successful build in Xcode 7.0 Beta 3 (formatted for clarity):
CompileStoryboard MyApp/Resources/Storyboards/Main.storyboard
cd /Users/me/Developer/my-app
export PATH="/Applications/Xcode 7.0 Beta/Xcode-beta.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode 7.0 Beta/Xcode-beta.app/Contents/Developer/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
export XCODE_DEVELOPER_USR_PATH="/Applications/Xcode 7.0 Beta/Xcode-beta.app/Contents/Developer/usr/bin/.."
/Applications/Xcode\ 7.0\ Beta/Xcode-beta.app/Contents/Developer/usr/bin/ibtool
--errors
--warnings
--notices
--module MyApp
--output-partial-info-plist /Users/me/Library/Developer/Xcode/DerivedData/MyApp-bwakexzthboxucdaodqtbbbwgsaz/Build/Intermediates/MyApp.build/Debug-iphonesimulator/MyApp.build/Main-SBPartialInfo.plist
--auto-activate-custom-fonts
--target-device iphone
--minimum-deployment-target 8.0
--output-format human-readable-text
--compilation-directory /Users/me/Library/Developer/Xcode/DerivedData/MyApp-bwakexzthboxucdaodqtbbbwgsaz/Build/Products/Debug-iphonesimulator/MyApp.app
/Users/me/Developer/my-app/MyApp/Resources/Storyboards/Main.storyboard
2015-09-17 15:44:06.451 Interface Builder Cocoa Touch Tool[1216:88742] Error creating notification handler for simulator graphics quality override: 1000000
with the unsuccessful one from Xcode 7.1 Beta:
CompileStoryboard MyApp/Resources/Storyboards/Main.storyboard
cd /Users/me/Developer/my-app
export PATH="/Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode-beta.app/Contents/Developer/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
export XCODE_DEVELOPER_USR_PATH=/Applications/Xcode-beta.app/Contents/Developer/usr/bin/..
/Applications/Xcode-beta.app/Contents/Developer/usr/bin/ibtool
--errors
--warnings
--notices
--module MyApp
--output-partial-info-plist /Users/me/Library/Developer/Xcode/DerivedData/MyApp-bwakexzthboxucdaodqtbbbwgsaz/Build/Intermediates/MyApp.build/Debug-iphonesimulator/MyApp.build/Main-SBPartialInfo.plist
--auto-activate-custom-fonts
--target-device iphone
--minimum-deployment-target 8.0
--output-format human-readable-text
--compilation-directory
/Users/me/Developer/my-app/MyApp/Resources/Storyboards/Main.storyboard
/* com.apple.ibtool.errors */
: error: Not enough arguments provided; where is the input document to operate on?
reveals that I seem to be missing a value for the --compilation-directory argument and so the path to the storyboard is being used instead of as the target file for compilation.
Is it possible to inspect/modify this compilation step or is this likely a bug in Xcode?

Answer 1

So thanks to an Apple support staff member, the solution is to move the Main.storyboard file from the Compile Sources build phase to the Copy Bundle Resources phase.

Answer 2

Adding another potential answer for "Error creating notification handler for simulator graphics quality override". I got this error when I added a run script in xcode build phases, and then dragged the script to the sop to make it run pre-build. No idea why this happened, but when I dragged the run script window back down to the bottom it fixed it.