diff --git a/lib/main.js b/lib/main.js
index cac6688..338a359 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -38,7 +38,11 @@ function run() {
             });
             let rel = yield github_1.release(config, new github_1.GitHubReleaser(gh));
             if (config.input_files) {
-                util_1.paths(config.input_files).forEach((path) => __awaiter(this, void 0, void 0, function* () {
+                const files = util_1.paths(config.input_files);
+                if (files.length == 0) {
+                    console.warn(`🤔 ${config.input_files} not include valid file.`);
+                }
+                files.forEach((path) => __awaiter(this, void 0, void 0, function* () {
                     yield github_1.upload(gh, rel.upload_url, path);
                 }));
             }