diff --git a/metagpt/actions/di/detect_intent.py b/metagpt/actions/di/detect_intent.py
index 9109c01bb..92d4aeb54 100644
--- a/metagpt/actions/di/detect_intent.py
+++ b/metagpt/actions/di/detect_intent.py
@@ -98,7 +98,8 @@ class DetectIntent(Action):
         sop_type = await self._aask(prompt)
         sop_type = sop_type.strip()
 
-        sop = SOPItem.get_type(sop_type).sop
+        item = SOPItem.get_type(sop_type)
+        sop = item.sop if item else None
 
         req_with_sop = (
             REQ_WITH_SOP.format(user_requirement=user_requirement, sop="\n".join(sop)) if sop else user_requirement
diff --git a/metagpt/tools/libs/software_development.py b/metagpt/tools/libs/software_development.py
index acc3716b1..04da431b7 100644
--- a/metagpt/tools/libs/software_development.py
+++ b/metagpt/tools/libs/software_development.py
@@ -43,7 +43,7 @@ async def write_prd(idea: str, project_path: Optional[str | Path] = None) -> Pat
     from metagpt.roles import ProductManager
 
     ctx = Context()
-    if project_path:
+    if project_path and Path(project_path).exists():
         ctx.config.project_path = Path(project_path)
         ctx.config.inc = True
     role = ProductManager(context=ctx)