2
>pub upgrade
Resolving dependencies... (6.2s)
analyzer 0.18.0 (9 newer versions available)
angular 0.14.0
args 0.10.0+2 (5 newer versions available)
barback 0.13.0 (14 newer versions available)
bootjack 0.6.5+2
browser 0.10.0+2
code_transformers 0.1.6 (5 newer versions available)
collection 0.9.4 (1 newer version available)
di 2.0.2 (3 newer versions available)
dquery 0.7.0+4
html5lib 0.10.0 (4 newer versions available)
intl 0.11.9
logging 0.9.1+1 (2 newer versions available)
path 1.3.0
perf_api 0.0.9
petitparser 1.2.2
route_hierarchical 0.4.22 (1 newer version available)
shadow_dom 0.10.0
source_maps 0.9.4 (1 newer version available)
source_span 1.0.0
stack_trace 0.9.3+2 (6 newer versions available)
typed_mock 0.0.4
utf 0.9.0+1
,所以我可以看到newer versions available
但因此如何对其进行更新?