From 342e455a7449a3ea9e74f961753f0ca5f279fa84 Mon Sep 17 00:00:00 2001
From: saschabuehrle <sascha.buehrle@gmail.com>
Date: Mon, 23 Mar 2026 15:47:27 +0100
Subject: [PATCH] fix: show fallback error message instead of undefined on
 build/deploy failure (fixes #131)

---
 src/cli/index.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/cli/index.ts b/src/cli/index.ts
index 368fef8..0e7935b 100644
--- a/src/cli/index.ts
+++ b/src/cli/index.ts
@@ -303,6 +303,8 @@ function createCli(): Command {
           output.showBuildErrors(deploy.errors);
         } else if (result.error) {
           output.error(result.error);
+        } else {
+          output.error("Build failed with no error details. Run with TINYBIRD_DEBUG=1 for more info.");
         }
         output.showBuildFailure();
         process.exit(1);
@@ -541,6 +543,8 @@ function createCli(): Command {
           output.showBuildErrors(deploy.errors);
         } else if (result.error) {
           output.error(result.error);
+        } else {
+          output.error("Deploy failed with no error details. Run with TINYBIRD_DEBUG=1 for more info.");
         }
         output.showDeployFailure();
         process.exit(1);
@@ -732,6 +736,8 @@ function createCli(): Command {
                 output.showBuildErrors(deploy.errors);
               } else if (result.error) {
                 output.error(result.error);
+              } else {
+                output.error("Build failed with no error details. Run with TINYBIRD_DEBUG=1 for more info.");
               }
               output.showBuildFailure(true);
               return;