gradle/gradle · error · ServiceLookupException

Can not inject RepositoryResourceAccessor since repository h

Error message

Can not inject RepositoryResourceAccessor since repository has no URL.

What it means

Component metadata rules declared on a repository get services injected through a tiny service registry: ObjectFactory always, plus RepositoryResourceAccessor only when the repository has a URL (something to access). If a rule requests RepositoryResourceAccessor on a URL-less repository, the lookup throws ServiceLookupException 'Can not inject RepositoryResourceAccessor since repository has no URL.'

Source

Thrown at platforms/software/dependency-management/src/main/java/org/gradle/api/internal/artifacts/repositories/AbstractArtifactRepository.java:217

    private static class RepositoryRuleServiceLookup implements ServiceLookup {

        private final ObjectFactory objectFactory;
        private final @Nullable RepositoryResourceAccessor repositoryResourceAccessor;

        public RepositoryRuleServiceLookup(
            ObjectFactory objectFactory,
            @Nullable RepositoryResourceAccessor repositoryResourceAccessor
        ) {
            this.objectFactory = objectFactory;
            this.repositoryResourceAccessor = repositoryResourceAccessor;
        }

        @Override
        public @Nullable Object find(Type serviceType) throws ServiceLookupException {
            if (serviceType == RepositoryResourceAccessor.class) {
                if (repositoryResourceAccessor == null) {
                    throw new ServiceLookupException("Can not inject RepositoryResourceAccessor since repository has no URL.");
                } else {
                    return repositoryResourceAccessor;
                }
            } else if (serviceType == ObjectFactory.class) {
                return objectFactory;
            }

            return null;
        }

        @Override
        public Object get(Type serviceType) throws UnknownServiceException, ServiceLookupException {
            Object service = find(serviceType);
            if (service != null) {
                return service;
            }
            throw new UnknownServiceException(serviceType, "Service of type " + serviceType + " is not available for repository metadata rules. Available services: " + availableServicesDescription() + ".");
        }

View on GitHub (pinned to 534f27719b)

Solutions

1. Set the repository URL before resolution: repo.setUrl(uri('https://repo.example.com/maven')).
2. Register accessor-dependent rules only on repositories where url != null (guard in plugin or build logic).
3. Split rules: those needing remote fetch go on URL-backed repositories only; pure metadata rules drop the accessor injection.

Example fix

// before
repositories.maven {
    name = 'custom'
    // no URL configured
    componentMetadata { module('com.example:*') { all(MyRemoteFetchingRule) } } // rule injects RepositoryResourceAccessor
}
// after
repositories.maven {
    name = 'custom'
    setUrl('https://repo.example.com/maven')
    componentMetadata { module('com.example:*') { all(MyRemoteFetchingRule) } }
}

if (repo instanceof MavenArtifactRepository && repo.url != null) {
    repo.componentMetadata {
        // rules that inject RepositoryResourceAccessor
    }
} else {
    logger.warn('Skipping remote-fetch metadata rule on repository without URL: ' + repo.name)
}

When it happens

Trigger: Declaring a repository componentMetadata / metadataSupplier rule whose action class has a RepositoryResourceAccessor parameter while the repository's URL was never set (or is set only later, after the rule is registered), then triggering resolution so the rule is instantiated.

Common situations: Plugins attaching metadata rules to every repository indiscriminately, including not-yet-configured ones; repositories whose URL is supplied later by environment-specific logic; local-only repositories with no remote to fetch from.

Related errors

• Service of type {} is not available for repository metadata
• Service of type {} annotated with @{} is not available for r
• Could not add URLs %s to class path for ClassLoader %s
• Cannot determine classpath for resource '%s' from location '
• Cannot parse file URL {location}

AI-assisted analysis of gradle/gradle@534f27719b (2026-08-22). Data as JSON: /api/errors/49ccb9dc84927150. Report an issue: GitHub.