Plugin org.unidal.maven.plugins:codegen-maven-plugin:2.5.8 could not be resolved

[codeboytj]

Describe the bug unidal仓库503

To Reproduce Steps to reproduce the behavior:

1. just run: mvn clean install -DskipTests

Expected behavior no error when mvn install

Screenshots

[ERROR] Plugin org.unidal.maven.plugins:codegen-maven-plugin:2.5.8 or one of its dependencies could not be resolved: Could not transfer artifact org.unidal.maven.plugins:codegen-maven-plugin:jar:2.5.8 from/to unidal.releases (http://unidal.org/nexus/content/repositories/releases/): transfer failed for http://unidal.org/nexus/content/repositories/releases/org/unidal/maven/plugins/codegen-maven-plugin/2.5.8/codegen-maven-plugin-2.5.8.jar, status: 503 Service Unavailable -> [Help 1]

Desktop (please complete the following information):

• OS: [Mac]