The following fragment in an image led to madness: # tools-debug \ inherit core-image Bitbake treated the "inherit core-image" as part of the comment, which caused some serious confusion. At the very least, bitbake should suggest this is not likely to do what you expected.
Can you please give a more specific description of where you made the changes and the results obtained(a log file)?
I made the changes in a custom image file. Try adding a line like this: # Some text \ Some line that should do something and build the recipe. The second line will be treated as a comment.\ I'm Crofton on irc if you want me to talk you through an example you can use in oe-core.
Patch out for review on the bitbake-devel list.
Fixed in master: http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=a5358511b1741e6abff1a8f5136f1c8662645fea (and preceeding patch)
There is a coherent error message that suggests the line is commented out. Verified in master:2cc4fe4a0874c42421b1bf3fa100160a9e60a9da