diff --git a/.dockerignore b/.dockerignore
index 1ec56340b956468ff6fcb143cd2baebe653ab370..44faecd4af9ed09fccdf5046decdabe4cf14e97b 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -6,6 +6,7 @@
 **/.settings
 **/.toolstarget
 **/*.lock
+**/package-lock.json
 **/.vs
 **/.vscode
 **/*.*proj.user
diff --git a/IoTSharp/Dockerfile_with_vue b/IoTSharp/Dockerfile_with_vue
index 6ed171a52fe33229ee7be24ccfed05b47f7ef33f..42ef61bbcc1fdde7177bfab30d83779f2332b130 100644
--- a/IoTSharp/Dockerfile_with_vue
+++ b/IoTSharp/Dockerfile_with_vue
@@ -17,7 +17,7 @@ RUN  	apt-get  -y update   && \
 	apt-get autoclean  
 RUN KEYRING=/usr/share/keyrings/nodesource.gpg && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource.gpg.key | gpg --dearmor |  tee "$KEYRING" >/dev/null && \
 	gpg --no-default-keyring --keyring "$KEYRING" --list-keys && \
-	VERSION=node_14.x &&  DISTRO=bullseye  && \
+	VERSION=node_12.x &&  DISTRO=bullseye  && \
 	echo "deb [signed-by=$KEYRING] https://deb.nodesource.com/$VERSION $DISTRO main" |  tee /etc/apt/sources.list.d/nodesource.list && \
 	apt-get  -y   -q update  && \
     apt-get install -y nodejs && \
@@ -29,9 +29,11 @@ RUN KEYRING=/usr/share/keyrings/nodesource.gpg && curl -fsSL https://deb.nodesou
     
 WORKDIR /src
 COPY ["IoTSharp/ClientAppVue/package.json", "IoTSharp/ClientAppVue/package.json"]
-RUN   npm install -g yarn && yarn config set sass_binary_site http://cdn.npm.taobao.org/dist/node-sass -g && \
-	  yarn config set registry https://registry.npm.taobao.org -g  &&  \
-	  yarn add sass@1.26.5 --cwd  ./IoTSharp/ClientAppVue/   &&   yarn install   --cwd  ./IoTSharp/ClientAppVue/
+WORKDIR /src/IoTSharp/ClientApp/
+RUN  npm install yarn -g 
+RUN   yarn add   node-sass@4.12.0  
+RUN   yarn install
+WORKDIR /src
 COPY ["IoTSharp/IoTSharp.csproj", "IoTSharp/"]
 COPY ["IoTSharp.Contracts/IoTSharp.Contracts.csproj", "IoTSharp.Contracts/"]
 COPY ["IoTSharp.Data.Storage/IoTSharp.Data.Cassandra/IoTSharp.Data.Cassandra.csproj", "IoTSharp.Data.Storage/IoTSharp.Data.Cassandra/"]
diff --git a/IoTSharp/IoTSharp.csproj b/IoTSharp/IoTSharp.csproj
index ebb5d196ef852e50435744079d806dabb4379049..f7cdc92bd5934861955974994d5a50de2cbc0700 100644
--- a/IoTSharp/IoTSharp.csproj
+++ b/IoTSharp/IoTSharp.csproj
@@ -193,13 +193,13 @@
 		<Error Condition="'$(ErrorCode)' != '0'" Text="Node.js is required to build and run this project. To continue, please install Node.js from https://nodejs.org/, and then restart your command prompt or IDE." />
 		<Message Importance="high" Text="Restoring dependencies using 'npm'. This may take several minutes..." />
 		<Exec WorkingDirectory="$(SpaRoot)" Command="npm install -g yarn " />
-		<Exec WorkingDirectory="$(SpaRoot)" Command="yarn add sass@1.26.5" />
+			<Exec WorkingDirectory="$(SpaRoot)" Command=" yarn add   node-sass@4.12.0 " />
 		<Exec WorkingDirectory="$(SpaRoot)" Command="yarn install  " />
 	</Target>
 	<Target Name="PublishRunWebpack_vue" AfterTargets="ComputeFilesToPublish" Condition=" '$(Configuration)' == 'Release_VUE'">
 		<!-- As part of publishing, ensure the JS resources are freshly built in production mode -->
 		<Exec WorkingDirectory="$(SpaRoot)" Command="npm install -g yarn " />
-		<Exec WorkingDirectory="$(SpaRoot)" Command="yarn add sass@1.26.5" />
+		<Exec WorkingDirectory="$(SpaRoot)" Command="yarn add  node-sass " />
 		<Exec WorkingDirectory="$(SpaRoot)" Command="yarn install  " />
 		<Exec WorkingDirectory="$(SpaRoot)" Command="yarn build" />
 		<!-- Include the newly-built files in the publish output -->