fixed several bugs

....cache/babel-loader/02ec4ecae8c6edf39f8e8f395ac7a976.json

....cache/babel-loader/0896b601e90b86391ccc5639d7450a17.json

....cache/babel-loader/0c79941efb4ac9fcdcf011c4a047ff77.json

....cache/babel-loader/0cef35aaad7fc248742fa9c6d82646d5.json

....cache/babel-loader/0e955bbdfd873c428ba197902d74d652.json

....cache/babel-loader/18f331dd6ffa181bf4ff04a4b9e14660.json

....cache/babel-loader/1a0d6f7d62f4729356a126fc936a4fab.json

....cache/babel-loader/1ed84f530cc681cc23842774c67786fe.json

....cache/babel-loader/2055a235267f0c539d96884f1a719ad0.json

....cache/babel-loader/24172f0d748e27abfc7ae6bb4f193e6b.json

....cache/babel-loader/2d492c495fd9873441b5d1f54b0abe16.json

....cache/babel-loader/2db5093f2276a69c1a4389f5b53f1e5e.json

....cache/babel-loader/2f1cd5e59df59abf0be5c65cb3606ab8.json

....cache/babel-loader/2ff970142140a98044d59d02edc9c7cd.json

....cache/babel-loader/317f249dffcafca72bed05f150454bdb.json

....cache/babel-loader/3190ea3810f9a06c40bd4f215738c0e1.json

....cache/babel-loader/331baffc3bd7d827fc43b20af186130e.json

....cache/babel-loader/34808a180a409444c51154f198478432.json

....cache/babel-loader/37f0988f1a79b548016ba68be97da457.json

....cache/babel-loader/381c47de1293b702fa3895bb3c46f212.json