ibtoold CompileStoryboard error: Controller cannot be nil

Question

On build XCode is freezing, and post the log message:

ibtoold[846:179360] Ignoring exception related to working with bindings: NSInvalidArgumentException, Controller cannot be nil

ibtoold process takes 98% CPU.

I understand that i have an error in bindings. How can i find the error in storyboard, or get more info?

XCode 7.1.1 OS X El Capitan 10.11

Answer 1

If you use view-based NSTableView, and you bind your cells to NSArrayController, NSArrayController should have value for "Content Set".

Answer 2

I had this exact problem today. I am still no clearer on bindings and why ibtoold is raising the exception. But searching through the xml, I found the binding that was causing the problem and got the storyboard compiling again. The xml was:

<connections>
    <binding destination="fXn-uG-csF" name="value" keyPath="objectValue" id="4ZS-gg-XUq"/>
</connections>

From this I found the object that had the binding. It was the cell version of a text field as a subview of the text field. I had removed the binding to the text field in Xcode, but the cell still had it.

Answer 3

I removed all binding statements and then had a clean compile. Thereafter I re-added step by step the bindings. The error occurred when adding a maybe erroneous binding to a table view cell