diff --git a/homeassistant/setup.py b/homeassistant/setup.py
index ec88a48ae7bc78..86a188bea018c3 100644
--- a/homeassistant/setup.py
+++ b/homeassistant/setup.py
@@ -207,7 +207,7 @@ async def async_prepare_setup_platform(hass: core.HomeAssistant,
     def log_error(msg: str) -> None:
         """Log helper."""
         _LOGGER.error("Unable to prepare setup for platform %s: %s",
-                      platform_name, msg)
+                      platform_path, msg)
         async_notify_setup_error(hass, platform_path)
 
     try:
@@ -226,8 +226,8 @@ def log_error(msg: str) -> None:
 
     try:
         platform = integration.get_platform(domain)
-    except ImportError:
-        log_error("Platform not found.")
+    except ImportError as exc:
+        log_error("Platform not found ({}).".format(exc))
         return None
 
     # Already loaded
@@ -239,8 +239,8 @@ def log_error(msg: str) -> None:
     if integration.domain not in hass.config.components:
         try:
             component = integration.get_component()
-        except ImportError:
-            log_error("Unable to import the component")
+        except ImportError as exc:
+            log_error("Unable to import the component ({}).".format(exc))
             return None
 
         if (hasattr(component, 'setup')