Both curl and openssl s_client work just fine. I can connect to Maven. I am wondering if there is an upstream change in the dependency or path for some reason. I believe the Dockerfile was compiling right earlier today.
Sent with Proton Mail secure email. On Friday, August 22nd, 2025 at 4:23 PM, Nick Couchman <vn...@apache.org> wrote: > On Fri, Aug 22, 2025 at 4:13 PM viktor_krumm viktor_kr...@proton.me.invalid > > wrote: > > > I am getting a error running "docker build ." after "git clone > > https://github.com/apache/guacamole-client";. Specifically it says: > > > > "ERROR [builder 10/11] RUN /opt/guacamole/bin/build-guacamole.sh > > "/tmp/guacamole-docker-BUILD" /opt/guacamole". > > > > That fails at: > > "Downloading from central: > > https://repo.maven.apache.org/maven2/org/codehaus/mojo/build-helper-maven-plugin/3.2.0/build-helper-maven-plugin-3.2.0.pom > > " > > "Plugin org.codehaus.mojo:build-helper-maven-plugin:3.2.0 or one of its > > dependencies could not be resolved:" > > "The following artifacts could not be resolved: > > org.codehaus.mojo:build-helper-maven-plugin:pom:3.2.0 (absent): Could not > > transfer artifact org.codehaus.mojo:build-helper-maven-plugin:pom:3.2.0 > > from/to central (https://repo.maven.apache.org/maven2: Network is > > unreachable." > > > > I have working DNS/internet connection and can reach the Guacamole github > > and ping the internet. > > The above error does not indicate an issue getting to the Internet in > general, or even to the Guacamole repository - it is very specific about > what it is having trouble connecting to, which is the URL for the Maven > repository. Make sure that you have access to that URL from the system > where you're attempting to build the Docker image, and that you don't have > security software, Internet filtering, or a proxy server blocking access to > that URL. You should be able to do something like: > > curl https://repo.maven.apache.org > > or > > openssl s_client -connect repo.maven.apache.org:443 > > and get a good response. > > -Nick
