"java: package org.junit does not exist" even though it's in Maven pom -

i "java: package org.junit not exist" in project , it's driving me crazy. have junit external library , still isn't recognizing that. trying set simple "hello world" app in intellij idea.

here pom:

<project xmlns="http://maven.apache.org/pom/4.0.0" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"          xsi:schemalocation="http://maven.apache.org/pom/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">     <modelversion>4.0.0</modelversion>     <groupid>com.springapp</groupid>     <artifactid>untitled</artifactid>     <packaging>war</packaging>     <version>1.0-snapshot</version>     <name>untitled</name>      <properties>         <spring.version>4.1.1.release</spring.version>     </properties>      <dependencies>         <dependency>             <groupid>org.springframework</groupid>             <artifactid>spring-core</artifactid>             <version>${spring.version}</version>         </dependency>          <dependency>             <groupid>org.springframework</groupid>             <artifactid>spring-web</artifactid>             <version>${spring.version}</version>         </dependency>          <dependency>             <groupid>javax.servlet</groupid>             <artifactid>servlet-api</artifactid>             <version>2.5</version>         </dependency>          <dependency>             <groupid>javax.servlet.jsp</groupid>             <artifactid>jsp-api</artifactid>             <version>2.1</version>             <scope>provided</scope>         </dependency>          <dependency>             <groupid>org.springframework</groupid>             <artifactid>spring-webmvc</artifactid>             <version>${spring.version}</version>         </dependency>          <dependency>             <groupid>org.springframework</groupid>             <artifactid>spring-test</artifactid>             <version>${spring.version}</version>             <scope>test</scope>         </dependency>          <dependency>             <groupid>junit</groupid>             <artifactid>junit</artifactid>             <version>4.11</version>             <scope>test</scope>         </dependency>     </dependencies>      <build>         <finalname>untitled</finalname>         <plugins>             <plugin>                 <artifactid>maven-compiler-plugin</artifactid>                 <configuration>                     <source>1.6</source>                     <target>1.6</target>                 </configuration>             </plugin>             <plugin>                 <artifactid>maven-surefire-plugin</artifactid>                 <configuration>                     <includes>                         <include>**/*tests.java</include>                     </includes>                 </configuration>             </plugin>         </plugins>     </build> </project> 

update: able run same exact project on other computer. strange.

you can try this:

mvn idea:idea 

it generate files needed intellij idea project.