cpu error message

Dockerfile

@@ -11,9 +11,9 @@ RUN --mount=target=requirements1.txt,source=requirements1.txt 	pip install --no-
 RUN --mount=target=requirements2.txt,source=requirements2.txt 	pip install --no-cache-dir -r requirements2.txt
 RUN pip install gradio
 RUN wget -O output.zip -q https://huggingface.co/camenduru/Dynamic3DGaussians/resolve/main/output.zip?download=true && unzip output.zip && rm output.zip
+RUN apt-get update && apt-get install -y xvfb
 COPY --chown=user . /home/user/app
 RUN cp -R /home/user/app/Dynamic3DGaussians /home/user/app/Dynamic3DGaussians_cpu
 RUN sed -i s/\.cuda\(\)\./\./ /home/user/app/Dynamic3DGaussians_cpu/*.py
 RUN sed -i s/,\ device="cuda"// /home/user/app/Dynamic3DGaussians_cpu/*.py
-RUN apt-get update && apt-get install -y xvfb
 ENTRYPOINT ["bash", "/home/user/app/runWithXvfb.sh"]

app.py

@@ -66,6 +66,6 @@ def do_nothing():
 iface = None
 if IS_CPU:
     iface = gr.Interface(fn=do_nothing, inputs=None, outputs=[gr.Textbox(label="Error", value="Not possible on CPU")], allow_flagging="never")
-else
+else:
     iface = gr.Interface(fn=run_simulation, inputs=gr.Dropdown(["basketball", "boxes", "football", "juggle", "softball", "tennis"], value="basketball"), outputs=[gr.Video(format="mp4"), gr.File(), gr.Image(), gr.Textbox(label="debug output")], allow_flagging="never")
 iface.launch(server_name="0.0.0.0")