I saw you are using the BSP 1.1.0 dirty, this BSP is for Quark but it is not totally supported for Galileo, I suggest you to use the BSP 1.0.1https://downloadcenter.intel.com/download/23823/Intel-Quark-BSP-Release-Archive
If you still get error messages, please let us know the last command you ran and all the log you are receiving.
I suggest you to use the the BSP 1.0.1
Do you have updates in this?
What is the output of running bitbake-layers show-layers and bitbake-layers show-recipes?
Are you cleaning your build after every try?
Also, are you building a default image or are you addind modules, packages, drivers..? Please let me know the steps you are following to build this image.