idk, just trying something form stackoverflow

Dockerfile

@@ -6,7 +6,7 @@ WORKDIR /app
 
 # idk why but vuecli is not being installed with package.json
 # so we have to manually install it
-RUN npm install -g @vue/cli
+RUN npm add global @vue/cli
 
 # copying package.json to root folder and installing dependencies
 COPY ./frontend/package*.json ./