请大佬指点一下，我 depot_tools 已经下载了,搜了一下 这个错误可能是因为终端没有设置代理导致的，在。etc/profile 和.bashrc文件中设置export http_proxy或者https的代理，还是不行。
________ running 'cipd ensure -log-level error -root /home/code/webrtc -ensure-file /tmp/tmpgoN0Y6.ensure' in '.'
CIPD selfupdate failed. Trying to bootstrap the CIPD client from scratch...
[P17588 10:32:40.106 client.go:309 W] RPC failed transiently. Will retry in 1s {"error":"failed to send request: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF", "host":"chrome-infra-packages.appspot.com", "method":"ResolveVersion", "service":"cipd.Repository", "sleepTime":"1s"}
[P17588 10:32:41.110 client.go:309 W] RPC failed transiently. Will retry in 2s {"error":"failed to send request: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF", "host":"chrome-infra-packages.appspot.com", "method":"ResolveVersion", "service":"cipd.Repository", "sleepTime":"2s"}
[P17588 10:32:43.126 client.go:309 W] RPC failed transiently. Will retry in 4s {"error":"failed to send request: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF", "host":"chrome-infra-packages.appspot.com", "method":"ResolveVersion", "service":"cipd.Repository", "sleepTime":"4s"}
[P17588 10:32:47.133 client.go:309 W] RPC failed transiently. Will retry in 8s {"error":"failed to send request: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF", "host":"chrome-infra-packages.appspot.com", "method":"ResolveVersion", "service":"cipd.Repository", "sleepTime":"8s"}
[P17588 10:32:55.134 client.go:309 W] RPC failed transiently. Will retry in 16s {"error":"failed to send request: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF", "host":"chrome-infra-packages.appspot.com", "method":"ResolveVersion", "service":"cipd.Repository", "sleepTime":"16s"}
[P17588 10:33:11.136 client.go:309 W] RPC failed transiently. Will retry in 32s {"error":"failed to send request: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF", "host":"chrome-infra-packages.appspot.com", "method":"ResolveVersion", "service":"cipd.Repository", "sleepTime":"32s"}
[P17588 10:33:43.137 client.go:309 W] RPC failed transiently. Will retry in 1m4s {"error":"failed to send request: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF", "host":"chrome-infra-packages.appspot.com", "method":"ResolveVersion", "service":"cipd.Repository", "sleepTime":"1m4s"}
[P17588 10:34:47.144 client.go:309 W] RPC failed transiently. Will retry in 2m8s {"error":"failed to send request: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF", "host":"chrome-infra-packages.appspot.com", "method":"ResolveVersion", "service":"cipd.Repository", "sleepTime":"2m8s"}
[P17588 10:36:55.146 client.go:309 W] RPC failed transiently. Will retry in 4m16s {"error":"failed to send request: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF", "host":"chrome-infra-packages.appspot.com", "method":"ResolveVersion", "service":"cipd.Repository", "sleepTime":"4m16s"}
[P17588 10:41:11.149 client.go:309 W] RPC failed transiently. Will retry in 8m32s {"error":"failed to send request: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF", "host":"chrome-infra-packages.appspot.com", "method":"ResolveVersion", "service":"cipd.Repository", "sleepTime":"8m32s"}
[P17588 10:49:43.151 client.go:329 W] RPC failed permanently: failed to send request: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF {"error":"failed to send request: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF", "host":"chrome-infra-packages.appspot.com", "method":"ResolveVersion", "service":"cipd.Repository"}
Error: Post https://chrome-infra-packages.appspot.com/prpc/cipd.Repository/ResolveVersion: proxyconnect tcp: EOF.
Bootstrap from scratch failed, something is seriously broken. Run the following commands to diagnose if this is repeating:
export CIPD_HTTP_USER_AGENT_PREFIX=depot_tools/f88941ad41370c76e289fdbdef562e6ceac9291b/manual
/home/depot_tools/.cipd_client selfupdate -version-file /home/depot_tools/cipd_client_version
Error: Command 'cipd ensure -log-level error -root /home/code/webrtc -ensure-file /tmp/tmpgoN0Y6.ensure' returned non-zero exit status 1
