Gestito errore di verifica delle build con cartella quando non trovate.

loaih/build.py

@@ -159,14 +159,19 @@ class Build(loaih.RemoteBuild):
                 path = str.join('/', path_arr)
                 print(f"DEBUG - Name: {name}, URL: {path}")
                 matching = []
-                with urllib.request.urlopen(path) as url:
-                    matching = etree.HTML(url.read()).xpath(
-                        f"//a[contains(@href, '{name}')]/@href"
-                    )
+                try:
+                    with urllib.request.urlopen(path) as url:
+                        matching = etree.HTML(url.read()).xpath(
+                            f"//a[contains(@href, '{name}')]/@href"
+                        )
 
-                if len(matching) > 0:
-                    # Already built.
-                    self.built[arch] = True
+                    if len(matching) > 0:
+                        # Already built.
+                        self.built[arch] = True
+
+                except urllib.error.HTTPError:
+                    # The URL specified do not exist. So it is to build.
+                    pass
 
             else:
                 # Repo is local