improve message when failure happens in dependencies

common/python/nomadcore/local_meta_info.py

@@ -190,7 +190,11 @@ class RelativeDependencySolver:
         depIKEnv = InfoKindEnv(path = dPath, dependencyLoader=infoKindEnv.dependencyLoader)
         self.deps[dPath] = depIKEnv
         with open(dPath) as f:
+            try:
                 depInfo = json.load(f)
+            except:
+                logging.exception("Error while loading dependency %s" % f)
+                raise
         if depInfo:
             depIKEnv.fromJsonList(depInfo, name = os.path.basename(dPath), source = { 'path': dPath }, dependencyLoad = True)
         return depIKEnv