fontmake can't output noto-sans-nushu

[jbmorizot]

fontmake: Error: In 'main/sources/old/NotoSansNushu_200324.glyphs' -> 'main/sources/master_ufos/NotoSansNushu02-Regular.designspace': Preparing the Designspace for interpolation failed: Can't generate UFOs from this Designspace because there is no default master source at location 'Weight: 100.0'. Check that all 'default' values of all axes together point to a single actual master source. For axes with a mapping, the 'default' values should have an 'input="..."' map value, where the corresponding 'output="..."' value then points to the master source.