The import org.springframework.web.servlet cannot be resolved - spring-mvc

I am learning SpringMVC, started a tutorial, I put all the jars in the library, but I got :
The import org.springframework.web.servlet cannot be resolved for :
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

Related

Missing Jar Files for HelloGlobe (JogAmp)

I am trying to run the following example.
I get errors for the following lines
import framework.Semantic;
import glm.mat.Mat4x4;
import glm.vec._2.Vec2;
import glm.vec._3.Vec3;
import uno.debug.GlDebugOutput;
import uno.glsl.Program;
...
import static glm.GlmKt.glm;
import static uno.buffer.UtilKt.destroyBuffer;
import static uno.buffer.UtilKt.destroyBuffers;
It seems that I am missing some more jar files even though I successfully imported jogl-all.jar and gluegen-rt.jar
I tried searching mvnrepository but did not find the jars I was looking for. I am not using maven.

Vue 3 - Bootstrap Rollup Failure

I'm new Vue, I don't understand this error from installing bootstrap-vue-3
Install commands:
npm i --save bootstrap bootstrap-vue-3
Configuration [main.js]:
import { createApp } from 'vue'
import App from './App.vue'
import './index.css'
import BootstrapVue3 from 'bootstrap-vue-3'
import 'bootstrap/dist/css/bootstrap.css'
import 'bootstrap-vue-3/dist/bootstrap-vue-3.css'
createApp(App)
.use(BootstrapVue3)
.mount('#app')
Errors:
Rollup failed to resolve import "bootstrap/js/dist/carousel" from "node_modules/bootstrap-vue-3/dist/bootstrap-vue-3.es.js".
This is most likely unintended because it can break your application at runtime.
If you do want to externalize this module explicitly add it to rollupInputOptions.external
This is a new project -- nothing added aside from default stuff and bootstrap.

Css working fine for development but not being applied after production buid - React

I created an app using create-react-app, while running the code for development using npm start the pages are loading fine with all the css but when I build the project using npm run build the css won't load. Below are the attached screenshots and code snippets.
Page being loaded in development.
Same page when the build folder is served.
Here is the App.js imports
import React, { useEffect, useState } from "react";
import "bootstrap/dist/css/bootstrap.min.css";
import "jquery/dist/jquery.min.js";
import "bootstrap/dist/js/bootstrap.min.js";
import "./assets/css/classy-nav.min.css";
import "./assets/vendors/font-awesome/v5.9.0/all.css";
import "./assets/vendors/animate-css/animate.css";
import "./assets/vendors/magnify-popup/magnific-popup.css";
import "./assets/css/style.css";
import "owl.carousel/dist/assets/owl.carousel.css";
import "owl.carousel/dist/assets/owl.theme.default.css";
import { toast, ToastContainer } from "react-toastify";
import "react-toastify/dist/ReactToastify.css";
import $ from "jquery";
import { WOW } from "wowjs";
toast.configure();
You might just need to run npm start after npm install.

Airflow 2 - ImportError: cannot import name 'BashOperator' from 'airflow.operators'

After upgrading to Airflow 2, I got that error in some DAGs:
ImportError: cannot import name 'BashOperator' from 'airflow.operators'
I ran into the same issue recently. The following worked for me:
from airflow.operators.bash import BashOperator
I resolved by change the import.
old one (https://github.com/apache/airflow/blob/v1-10-stable/airflow/hooks/base_hook.py)
from airflow.operators import BashOperator
the new one that works (https://github.com/apache/airflow/blob/v2-0-stable/airflow/hooks/base.py)
from airflow.hooks import BashOperator
As for airflow 2.2 the import should be:
from airflow.operators.bash import BashOperator
More details can be found in airflow-v2-2-stable-code:
The following imports are deprecated in version 2.2: deprecated
message in v2.2 source code
from airflow.operators import BashOperator

Error after migrating vaadin 7 to 8

I just used https://vaadin.com/docs/framework/v8/migration/migrating-to-vaadin8.html to migrate my application from vaadin 7 to vaadin 8.1.4. I was able to compile the widgetset file, but when I am trying to run the application on tomcat 8, I am getting following error
java.lang.NoSuchMethodError: com.vaadin.ui.Button.addClickListener(Lcom/vaadin/ui/Button$ClickListener;)Lcom/vaadin/shared/Registration;
....
....
....
SEVERE: Servlet.service() for servlet [vaadin-servlet] in context with path [/activescreener] threw exception [com.vaadin.server.ServiceException: java.lang.NoSuchMethodError: com.vaadin.ui.Button.addClickListener(Lcom/vaadin/ui/Button$ClickListener;)Lcom/vaadin/shared/Registration;] with root cause
java.lang.NoSuchMethodError: com.vaadin.ui.Button.addClickListener(Lcom/vaadin/ui/Button$ClickListener;)Lcom/vaadin/shared/Registration;
Is something wrong with my migration. I can see in my classes, not every import is migrated to *.v7
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.CustomComponent;
import com.vaadin.v7.ui.HorizontalLayout;
import com.vaadin.ui.Layout;
import com.vaadin.ui.MenuBar;
import com.vaadin.ui.MenuBar.MenuItem;
import com.vaadin.v7.ui.OptionGroup;
import com.vaadin.ui.UI;
import com.vaadin.v7.ui.VerticalLayout;
Example, I still have com.vaadin.ui.Button;, Should it be com.vaadin.v7.ui.Button?

Resources