Fatal error during build

[thisandagain]

python build.py

SUCCESS: msg/js/ar.js
SUCCESS: msg/js/az.js
SUCCESS: msg/js/ba.js
SUCCESS: msg/js/bcc.js
SUCCESS: msg/js/be-tarask.js
SUCCESS: msg/js/bg.js
SUCCESS: msg/js/bn.js
SUCCESS: msg/js/br.js
SUCCESS: msg/js/ca.js
SUCCESS: msg/js/cs.js
SUCCESS: msg/js/da.js
SUCCESS: msg/js/de.js
SUCCESS: msg/js/el.js
SUCCESS: msg/js/en.js
SUCCESS: msg/js/es.js
SUCCESS: msg/js/fa.js
SUCCESS: msg/js/fi.js
SUCCESS: msg/js/fr.js
SUCCESS: msg/js/he.js
SUCCESS: msg/js/hi.js
SUCCESS: msg/js/hrx.js
SUCCESS: msg/js/hu.js
SUCCESS: msg/js/ia.js
SUCCESS: msg/js/id.js
SUCCESS: msg/js/is.js
SUCCESS: msg/js/it.js
SUCCESS: msg/js/ja.js
SUCCESS: msg/js/ko.js
SUCCESS: msg/js/lb.js
SUCCESS: msg/js/lki.js
SUCCESS: msg/js/lrc.js
SUCCESS: msg/js/lt.js
SUCCESS: msg/js/mk.js
SUCCESS: msg/js/ms.js
SUCCESS: msg/js/nb.js
SUCCESS: msg/js/nl.js
SUCCESS: msg/js/oc.js
SUCCESS: msg/js/pl.js
SUCCESS: msg/js/pms.js
SUCCESS: msg/js/pt-br.js
SUCCESS: msg/js/pt.js
SUCCESS: msg/js/ro.js
SUCCESS: msg/js/ru.js
SUCCESS: msg/js/sc.js
SUCCESS: msg/js/sd.js
SUCCESS: msg/js/shn.js
SUCCESS: msg/js/sk.js
SUCCESS: msg/js/sl.js
SUCCESS: msg/js/sq.js
SUCCESS: msg/js/sr.js
SUCCESS: msg/js/sv.js
SUCCESS: msg/js/ta.js
SUCCESS: msg/js/tcy.js
SUCCESS: msg/js/th.js
SUCCESS: msg/js/tl.js
SUCCESS: msg/js/tlh.js
SUCCESS: msg/js/tr.js
SUCCESS: msg/js/uk.js
SUCCESS: msg/js/vi.js
SUCCESS: msg/js/zh-hans.js
SUCCESS: msg/js/zh-hant.js
SUCCESS: blockly_uncompressed_vertical.js
SUCCESS: blockly_uncompressed_horizontal.js
SUCCESS: blockly_compressed_vertical.js
Size changed from 2496 KB to 586 KB (24%).
SUCCESS: blockly_compressed_horizontal.js
Size changed from 2490 KB to 585 KB (24%).
FATAL ERROR
required "Blockly.Colours" namespace never provided
blocks/math.js at line 31:
goog.require('Blockly.Colours');

/cc @rachel-fenichel

[tmickel]

Sorry about this. Seems to be happening in the generation of blocks_compressed.js. I'm not totally confident about how the goog.require/goog.provide is working, so I'll have to investigate.