Fix NPE in scripts, dt cann't be NULL
Fix NPE in scripts, dt cann't be NULL

R-Brain/codenvy,R-Brain/codenvy,R-Brain/codenvy,codenvy/codenvy,R-Brain/codenvy,codenvy/codenvy,codenvy/codenvy,R-Brain/codenvy,codenvy/codenvy,codenvy/codenvy,codenvy/codenvy,R-Brain/codenvy