On Fri, Aug 22, 2025 at 4:13 PM viktor_krumm <[email protected]> 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
