@NotNull private static DartLibInfo collectPackagesLibraryRoots( @NotNull final Project project, @NotNull final DartSdk sdk) { final DartLibInfo libInfo = new DartLibInfo(false); final Collection<VirtualFile> pubspecYamlFiles = FilenameIndex.getVirtualFilesByName( project, PUBSPEC_YAML, GlobalSearchScope.projectScope(project)); final ProjectFileIndex fileIndex = ProjectRootManager.getInstance(project).getFileIndex(); for (VirtualFile pubspecFile : pubspecYamlFiles) { final VirtualFile dotPackagesFile = pubspecFile.getParent().findChild(DotPackagesFileUtil.DOT_PACKAGES); final Module module = dotPackagesFile == null ? null : fileIndex.getModuleForFile(dotPackagesFile); if (dotPackagesFile != null && !dotPackagesFile.isDirectory() && module != null && DartSdkGlobalLibUtil.isDartSdkEnabled(module)) { final Map<String, String> packagesMap = DotPackagesFileUtil.getPackagesMap(dotPackagesFile); if (packagesMap != null) { for (Map.Entry<String, String> entry : packagesMap.entrySet()) { final String packageName = entry.getKey(); final String packagePath = entry.getValue(); if (isPathOutsideProjectContent(fileIndex, packagePath)) { libInfo.addPackage(packageName, packagePath); } } } } } return libInfo; }