[Announcement] How can I generate to c??

I install openapi-generator cli in Ubuntu

But I had a Error like below

Downloading from sonatype-snapshots: https://oss.sonatype.org/content/repositories/snapshots/org/sonatype/oss/oss-parent/5/oss-parent-5.pom
Downloading from central: https://repo.maven.apache.org/maven2/org/sonatype/oss/oss-parent/5/oss-parent-5.pom
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[FATAL] Non-resolvable parent POM for org.openapitools:openapi-generator-project:6.0.0-SNAPSHOT: Could not transfer artifact org.sonatype.oss:oss-parent:pom:5 from/to sonatype-snapshots (https://oss.sonatype.org/content/repositories/snapshots): Connection reset and 'parent.relativePath' points at no local POM @ line 2, column 13
@
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]
[ERROR] The project org.openapitools:openapi-generator-project:6.0.0-SNAPSHOT (/home/jinyoungbang/gitProject/openapi-generator/pom.xml) has 1 error
[ERROR] Non-resolvable parent POM for org.openapitools:openapi-generator-project:6.0.0-SNAPSHOT: Could not transfer artifact org.sonatype.oss:oss-parent:pom:5 from/to sonatype-snapshots (https://oss.sonatype.org/content/repositories/snapshots): Connection reset and 'parent.relativePath' points at no local POM @ line 2, column 13 -> [Help 2]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException
[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException

How can I generate to c-client?

Start with the openapi-generator CLI installation and C-client generation instructions, then inspect the root pom.xml and the reported Maven resolution failure. Reproduce the Ubuntu installation problem and determine whether the documented CLI path can generate a C client successfully; document the required steps and expected result.