Update error message to be more precise on the underlying issue

1 files changed, 1 insertions, 1 deletions

diff --git a/src/ideviceinstaller.c b/src/ideviceinstaller.c
index f0e0253..92518da 100644
--- a/src/ideviceinstaller.c
+++ b/src/ideviceinstaller.c
@@ -1069,7 +1069,7 @@ run_again:
                         char* app_directory_name = NULL;
 
                         if (zip_get_app_directory(zf, &app_directory_name)) {
-                                fprintf(stderr, "Unable to locate app directory in archive!\n");
+                                fprintf(stderr, "ERROR: Unable to locate .app directory in archive. Make sure it is inside a 'Payload' directory.\n");
                                 goto leave_cleanup;
                         }