update import detectron2

Dockerfile

@@ -26,7 +26,8 @@ FROM nvidia/cuda:11.1.1-cudnn8-devel-ubuntu18.04 as cuda
 ENV DEBIAN_FRONTEND=noninteractive
 
 # Install system dependencies
-RUN apt-get update && apt-get install -y \
+RUN apt-get update && apt-get clean
+RUN apt-get update && apt-get install -y --fix-missing \
     python3-opencv \
     python3-pip \
     ca-certificates \
@@ -36,6 +37,7 @@ RUN apt-get update && apt-get install -y \
     sudo \
     ninja-build
 
+
 # Link Python and Pip commands
 RUN ln -sv /usr/bin/python3 /usr/bin/python && ln -sv /usr/bin/pip3 /usr/bin/pip