Fix: Force reinstall transformers 4.48 + FlagEmbedding in Docker build

Dockerfile

@@ -19,7 +19,12 @@ RUN apt-get update && \
     && rm -rf /var/lib/apt/lists/*
 
 COPY backend/requirements.txt /app/requirements.txt
-RUN pip install --upgrade pip && pip install -r requirements.txt
+RUN pip install --upgrade pip && \
+    pip install --no-cache-dir --upgrade --force-reinstall \
+        "transformers==4.48.0" \
+        "sentence-transformers>=2.2.0" \
+        "FlagEmbedding>=1.2.0" && \
+    pip install --no-cache-dir -r requirements.txt
 
 COPY backend /app
 

backend/requirements.txt

@@ -14,7 +14,7 @@ scipy==1.11.4
 pydantic>=2.0.0,<3.0.0
 sentence-transformers>=2.2.0
 torch>=2.0.0
-transformers>=4.48.0,<5.0.0
+transformers==4.48.0
 accelerate>=0.21.0,<1.0.0
 bitsandbytes>=0.41.0,<0.44.0
 faiss-cpu>=1.7.4

requirements.txt

@@ -13,7 +13,7 @@ scipy==1.11.4
 pydantic>=2.0.0,<3.0.0
 sentence-transformers>=2.2.0
 torch>=2.0.0
-transformers>=4.48.0,<5.0.0
+transformers==4.48.0
 accelerate>=0.20.0,<0.30.0
 bitsandbytes>=0.41.0,<0.44.0
 faiss-cpu>=1.7.4