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Unable to load the service index for source https://api.nuget.org/v3/index.json.
Problem encountered on https://dotnet.microsoft.com/en-us/learn/aspnet/microservice-tutorial/docker-image Operating System: windows I am Geeting error while
[build 4/6] RUN dotnet restore: #11 1.569 Determining projects to restore... #11 8.229 /src/MyMicroservice.csproj : error NU1301: Unable to load the service index for source https://api.nuget.org/v3/index.json. #11 14.33 /src/MyMicroservice.csproj : error NU1301: Unable to load the service index for source https://api.nuget.org/v3/index.json. #11 14.40 Failed to restore /src/MyMicroservice.csproj (in 12.44 sec).
executor failed running [/bin/sh -c dotnet restore]: exit code: 1
I am also new to docker and facing the same issue in RUN dotnet restore as below
update :- Adding DNS Server into Docker Engine solve this problem
Step:-
- Open Docker Desktop
- Go to Setting
- Go to Docker Engine
- Add DNS tag in setting configuration as below
Hi @skt005, we have maybe the same issue with a private feed hosted in onprem gitlab istance, my question is what have you inserted in the DNS array? I mean which hostname/ip?
Thanks.
update :- Adding DNS Server into Docker Engine solve this problem
Step:-
- Open Docker Desktop
- Go to Setting
- Go to Docker Engine
- Add DNS tag in setting configuration as below
Thanks for posting the fix! That's crazy that the workaround is adding DNS entries to Docker!!!
hi @mpowrie ,
Can you please tell me Which DNS address we have to put here in order to work.
Thanks
#13 [build 5/8] RUN dotnet restore "./myFirstProject.csproj" #13 0.587 Determining projects to restore... #13 126.6 /src/myFirstProject.csproj : error NU1301: Unable to load the service index for source https://api.nuget.org/v3/index.json.
Still Failing After Adding DNS entry please see my docker Compose file
**#See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.
FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base WORKDIR /app EXPOSE 80 EXPOSE 443
FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build WORKDIR /src COPY ["myFirstProject.csproj", "."] RUN export DOTNET_SYSTEM_NET_HTTP_USESOCKETSHTTPHANDLER=0 #RUN curl "www.google.com" #RUN curl -k "https://api.nuget.org/v3/index.json" RUN dotnet restore "./myFirstProject.csproj" COPY . . WORKDIR "/src/." RUN dotnet build "myFirstProject.csproj" -c Release -o /app/build
FROM build AS publish RUN dotnet publish "myFirstProject.csproj" -c Release -o /app/publish /p:UseAppHost=false
FROM base AS final WORKDIR /app COPY --from=publish /app/publish . ENTRYPOINT ["dotnet", "myFirstProject.dll"]**
in the above I am able to do both
RUN curl "www.google.com" RUN curl -k "https://api.nuget.org/v3/index.json"
when I did without -k i am getting certificate exception
update :- Adding DNS Server into Docker Engine solve this problem
Step:-
- Open Docker Desktop
- Go to Setting
- Go to Docker Engine
- Add DNS tag in setting configuration as below
For anyone not using docker desktop, this also works in the free alternative Container Desktop
I'm seeing the same issue...
I've updated my config file in desktop docker -> docker engine settings...
However the issue still persists...
The strange thing is, it works fine in another project...
Anyone have any ideas?
This just started happening to me as well, worked yesterday, hosed today. Running the docker build on WSL.
I can restore fine outside of docker.
Updating DNS did not work, anyone have ideas?
I'm seeing the same issue...
I've updated my config file in desktop docker -> docker engine settings...
However the issue still persists...
The strange thing is, it works fine in another project...
Anyone have any ideas?
So I got it to work. I'm not sure which of these steps made it work, but here they are...
I updated version 4.17 to 4.18. The update hung during the install and I had to kill all docker running processes and services. While killing the docker processes, I noticed there were .net tasks running (usually happens after running dotnet commands and they hang), so I also killed those processes to ensure nothing would be stuck in the handlers.
After starting docker back up, and clicking yes to start everything, it immediately closed docker desktop and began installing the updates. After it finished, I started docker desktop again, and waited a while for it to start up, and it did.
I executed the command again and success!
Hope this helps anyone else here. Thanks and take care.
Facing the below error when dotnet restore is being executed from within docker error NU1301: Unable to load the service index for source https://api.nuget.org/v3/index.json
Tried setting up dns property in Docker engine as suggested above. But no luck. Packages are getting restored from Visual studio as well dotnet restore command also is working fine when executed outside docker. Issue seen only when ran with docker.
Any solutions?
Setting up "MaxProtocol" to TLS 1.2. For example on ubuntu image
echo "MaxProtocol = TLSv1.2" >> /etc/ssl/openssl.cnf && dotnet restore
For me the below steps before dotnet restore worked as ZScaler is installed on my machine. Exported ZScaler from Certificate store.
COPY zscalar.cer . ADD zscalar.cer /usr/local/share/ca-certificates/zscalar.cer ADD zscalar.cer /etc/ssl/certs/zscalar.cer RUN chmod 644 /usr/local/share/ca-certificates/zscalar.cer && update-ca-certificates
I think it could be firewall issue with laptop on accessing the URls from docker image
Hey, I had the same issue, and I figured out that this problem disappears when I install curl or wget.
So I added the following line to my Dockerfile before running dotnet publish:
RUN apt-get install -y wget
It seems like the distribution is missing some packages required for performing HTTPS calls.
Hi All, I was also facing same issue and spend many days to resolve it but no luck, thanks to this article which helped me a lot. Article URL:- http://blogswithdev.com/docker-issue
apt install curl fixed it for me.
Got this error in ubuntu:latest. It's gone after adding curl... try it, maybe it helps.
apt install curlfixed it for me. Got this error in ubuntu:latest. It's gone after adding curl... try it, maybe it helps.
This worked for me too. Thank you!
I have this problem when build docker
I have setting docker desktop like this :
But still Error. Please help me !!
My project and csproj:
i have same issue
docker file build of vs2022
error NU1301: Unable to load the service index for source https://api.nuget.org/v3/index.json.
docker setting add dns section
"dns":["1.1.1.1","8.8.8.8"]
help me..
For me the below steps before dotnet restore worked as ZScaler is installed on my machine. Exported ZScaler from Certificate store.
COPY zscalar.cer . ADD zscalar.cer /usr/local/share/ca-certificates/zscalar.cer ADD zscalar.cer /etc/ssl/certs/zscalar.cer RUN chmod 644 /usr/local/share/ca-certificates/zscalar.cer && update-ca-certificates
YES!!! This works for me! I am so glad I found this. I have been banging my head against this wall for way too long!
"dns":["1.1.1.1","8.8.8.8"],
this DNS doesn't help me.
FYI, it did not help me either. My problem was that I was being blocked from accessing the Internet from inside the container. I needed to provide the root certificate in order to succeed. You can see my previous post for details.
Hope this helps.
In our case we run Kubernetes using Docker Desktop and deployed dotnet application, which stuck with a similar error
error NU1301: Unable to load the service index for source https://api.nuget.org/v3/index.json.
DNS name api.nuget.org can't be resolved inside the Pod and probably because of the networking related issue. However, most of the other names resolved successfully.
Did a try to set different MTU, but still see same 1500 inside the Pod
vi "$HOME/Library/Group Containers/group.com.docker/settings.json"
"vpnKitMTU": 1472,
checks
-
Deploy a simple Pod with Ubuntu
apiVersion: v1 kind: Pod metadata: name: ubuntu namespace: default spec: containers: - name: ubuntu image: ubuntu:22.04 command: ["sleep", "infinite"] -
Install utilities
apt update && apt install -y curl dnsutils iputils-ping net-tools -
Check DNS resolving
# curl - fail curl -m 5 https://api.nuget.org/v3/index.json curl: (28) Resolving timed out after 5000 milliseconds # ping - fail ping api.nuget.org ping: api.nuget.org: Temporary failure in name resolution # nslookup - fail nslookup api.nuget.org nslookup api.nuget.org Server: 10.96.0.10 Address: 10.96.0.10#53 ** server can't find api.nuget.org: SERVFAIL # nslookup over TCP - success nslookup -vc api.nuget.org Server: 10.96.0.10 Address: 10.96.0.10#53 Non-authoritative answer: api.nuget.org canonical name = nugetapiprod.trafficmanager.net. nugetapiprod.trafficmanager.net canonical name = apiprod-mscdn.azureedge.net. apiprod-mscdn.azureedge.net canonical name = apiprod-mscdn.afd.azureedge.net. apiprod-mscdn.afd.azureedge.net canonical name = azureedge-t-prod.trafficmanager.net. azureedge-t-prod.trafficmanager.net canonical name = shed.dual-low.part-0016.t-0009.t-msedge.net. shed.dual-low.part-0016.t-0009.t-msedge.net canonical name = part-0016.t-0009.t-msedge.net. Name: part-0016.t-0009.t-msedge.net Address: 13.107.246.44 Name: part-0016.t-0009.t-msedge.net Address: 13.107.213.44 Name: part-0016.t-0009.t-msedge.net Address: 2620:1ec:46::44 Name: part-0016.t-0009.t-msedge.net Address: 2620:1ec:bdf::44 # dig - success dig api.nuget.org ; <<>> DiG 9.16.48-Debian <<>> api.nuget.org ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39150 ;; flags: qr rd ra; QUERY: 1, ANSWER: 8, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ; COOKIE: 5265cadb46e3622a (echoed) ;; QUESTION SECTION: ;api.nuget.org. IN A ;; ANSWER SECTION: api.nuget.org. 30 IN CNAME nugetapiprod.trafficmanager.net. nugetapiprod.trafficmanager.net. 30 IN CNAME apiprod-mscdn.azureedge.net. apiprod-mscdn.azureedge.net. 30 IN CNAME apiprod-mscdn.afd.azureedge.net. apiprod-mscdn.afd.azureedge.net. 30 IN CNAME azureedge-t-prod.trafficmanager.net. azureedge-t-prod.trafficmanager.net. 30 IN CNAME shed.dual-low.part-0016.t-0009.t-msedge.net. shed.dual-low.part-0016.t-0009.t-msedge.net. 30 IN CNAME part-0016.t-0009.t-msedge.net. part-0016.t-0009.t-msedge.net. 30 IN A 13.107.213.44 part-0016.t-0009.t-msedge.net. 30 IN A 13.107.246.44 ;; Query time: 16 msec ;; SERVER: 10.96.0.10#53(10.96.0.10) ;; WHEN: Fri Mar 29 13:25:16 UTC 2024 ;; MSG SIZE rcvd: 604 -
Check MTU
# 1472 - success ping -c 3 -M do -s 1472 bing.com PING bing.com (204.79.197.200) 1472(1500) bytes of data. 1480 bytes from a-0001.a-msedge.net (204.79.197.200): icmp_seq=1 ttl=63 time=16.9 ms 1480 bytes from a-0001.a-msedge.net (204.79.197.200): icmp_seq=2 ttl=63 time=19.6 ms 1480 bytes from a-0001.a-msedge.net (204.79.197.200): icmp_seq=3 ttl=63 time=24.8 ms --- bing.com ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2005ms rtt min/avg/max/mdev = 16.916/20.423/24.771/3.261 ms # 1474 - fail ping -c 3 -M do -s 1474 bing.com PING bing.com (13.107.21.200) 1474(1502) bytes of data. ping: local error: message too long, mtu=1500 ping: local error: message too long, mtu=1500 ping: local error: message too long, mtu=1500 --- bing.com ping statistics --- 3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2061ms # Container MTU ifconfig eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.1.0.130 netmask 255.255.0.0 broadcast 10.1.255.255 ether be:ed:71:06:43:22 txqueuelen 0 (Ethernet) RX packets 5366 bytes 44885370 (44.8 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3962 bytes 277004 (277.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 1000 (Local Loopback) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
update :- Adding DNS Server into Docker Engine solve this problem
Step:-
- Open Docker Desktop
- Go to Setting
- Go to Docker Engine
- Add DNS tag in setting configuration as below
this fixed the issue for me.
apt install curl worked for me.
apt install curlfixed it for me. Got this error in ubuntu:latest. It's gone after adding curl... try it, maybe it helps.
Thank you so much!
Adding DNS entry worked for me. It is an issue docker intermediate container is not able to reach api.nuget.org. It could be due to firewall , vpn or any other issue specific to respective machine.
"dns": [ "1.1.1.1", "8.8.8.8" ]
