diff --git a/hb/common/config.py b/hb/common/config.py
index e07d7154a4bd3e74dd653822feab51c1c467d7a9..26813a8c17218770b8ab10c693d8cf7902badd81 100755
--- a/hb/common/config.py
+++ b/hb/common/config.py
@@ -128,7 +128,10 @@ class Config(metaclass=Singleton):
 
     @property
     def build_path(self):
-        return os.path.join(self.root_path, 'build', 'lite')
+        _build_path = os.path.join(self.root_path, 'build', 'lite')
+        if not os.path.isdir(_build_path):
+            raise Exception(f'Invalid build path: {_build_path}')
+        return _build_path
 
     @property
     def out_path(self):
@@ -144,7 +147,10 @@ class Config(metaclass=Singleton):
 
     @property
     def vendor_path(self):
-        return os.path.join(self.root_path, 'vendor')
+        _vendor_path = os.path.join(self.root_path, 'vendor')
+        if not os.path.isdir(_vendor_path):
+            raise Exception(f'Invalid vendor path: {_vendor_path}')
+        return _vendor_path
 
     @property
     def build_tools_path(self):
diff --git a/hb/common/utils.py b/hb/common/utils.py
index c22f05fe6f6b00c197d0dcdddf38bf175d91ab30..a3ba0f6988092ae2c6ee27b73ab7df7b48c94720 100755
--- a/hb/common/utils.py
+++ b/hb/common/utils.py
@@ -169,21 +169,21 @@ def args_factory(args_dict):
 
 def hb_info(msg):
     level = 'info'
-    for line in msg.splitlines():
+    for line in str(msg).splitlines():
         sys.stdout.write(message(level, line))
         sys.stdout.flush()
 
 
 def hb_warning(msg):
     level = 'warning'
-    for line in msg.splitlines():
+    for line in str(msg).splitlines():
         sys.stderr.write(message(level, line))
         sys.stderr.flush()
 
 
 def hb_error(msg):
     level = 'error'
-    for line in msg.splitlines():
+    for line in str(msg).splitlines():
         sys.stderr.write(message(level, line))
         sys.stderr.flush()