import org.gradle.api.artifacts.component.ComponentSelector;

/**
 * A library that turned out to be unresolved.
 *
 * @since 6.7
 */
public class UnresolvedLibrary extends Library {

    private ComponentSelector attemptedSelector;

    public UnresolvedLibrary(FileReference library) {
        super(library);
    }

    /**
     * The attempted selector reported by the related UnresolvedDependencyResult
     */

                if (entry instanceof UnresolvedLibrary) {
                    UnresolvedLibrary unresolvedLibrary = (UnresolvedLibrary) entry;
                    dependency = DefaultEclipseExternalDependency.createUnresolved(file, javadoc, source, library.getModuleVersion(), library.isExported(), createAttributes(library), createAccessRules(library), unresolvedLibrary.getAttemptedSelector().getDisplayName());
                } else {

            File unresolvedFile = unresolvedIdeDependencyHandler.asFile(unresolvedDependency, project.getProjectDir());
            UnresolvedLibrary unresolvedLib = (UnresolvedLibrary) createUnresolvedLibraryEntry(unresolvedFile, classpath, pathToSourceSets, false, false);
            unresolvedLib.setAttemptedSelector(unresolvedDependency.getAttempted());
            files.add(unresolvedLib);

Method <org.gradle.plugins.ide.eclipse.model.UnresolvedLibrary.getAttemptedSelector()> does not have raw return type assignable to org.gradle.api.provider.Property in (UnresolvedLibrary.java:0)
Method <org.gradle.plugins.ide.eclipse.model.Variable.getKind()> does not have raw return type assignable to org.gradle.api.provider.Provider in (Variable.java:0)