improve config parsing error handling
improve config parsing error handling

mastergberry/electron-builder,ledinhphuong/electron-builder,xseignard/electron-builder,mastergberry/electron-builder,ledinhphuong/electron-builder,develar/electron-builder,aulvi/electron-builder,loopline-systems/electron-builder,MariaDima/electron-builder,MariaDima/electron-builder,MariaDima/electron-builder,ledinhphuong/electron-builder,aulvi/electron-builder,mastergberry/electron-builder,badams/electron-builder,MariaDima/electron-builder,ledinhphuong/electron-builder,loopline-systems/electron-builder,badams/electron-builder,electron-userland/electron-builder,MariaDima/electron-builder,badams/electron-builder,badams/electron-builder,loopline-systems/electron-builder,ledinhphuong/electron-builder,develar/electron-builder,electron-userland/electron-builder,xseignard/electron-builder,loopline-systems/electron-builder,xseignard/electron-builder,xseignard/electron-builder,mastergberry/electron-builder,aulvi/electron-builder,MariaDima/electron-builder,develar/electron-builder,aulvi/electron-builder,develar/electron-builder,loopline-systems/electron-builder,electron-userland/electron-builder,ledinhphuong/electron-builder