Having dependency issue when building #45

As shown in the following image:

go: github.com/polynetwork/poly-io-test@v0.0.0-20200819093740-8cf514b07750 requires github.com/ontio/ontology-go-sdk@v1.11.4 requires github.com/ontio/ontology@v1.10.0/go.mod: verifying module: checksum mismatch downloaded: h1:Qw74bfTBlIQka+jQX4nXuWvyOYGGt368/V7XFxaf4tY= sum.golang.org: h1:iok/imHJVQXi5/Yr88dcbrKBRHGdiota1ZC6qh6l6Rc=