Spring Boot application can t resolve the org springframework boot package

Question

I have set up a spring boot project using the Spring Initializer  I tried several times to create a new project or play with the dependencies  everything seems to be in place   I am using STS Spring Tool Suite  and it shows errors about the imports from theorg springframework boot package  Running the application throws an exception      Exception in thread  main  java lang Error  Unresolved compilation   problem       SpringApplication cannot be resolved    com example DemoApplication   import org springframework boot SpringApplication  import org springframework boot autoconfigure SpringBootApplication    SpringBootApplication public class DemoApplication        public static void main String   args            SpringApplication run DemoApplication class  args             pom xml    lt  xml version  1 0  encoding  UTF-8   gt   lt 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 xsd maven-4 0 0 xsd  gt       lt modelVersion gt 4 0 0 lt  modelVersion gt        lt groupId gt com example lt  groupId gt       lt artifactId gt demo lt  artifactId gt       lt version gt 0 0 1-SNAPSHOT lt  version gt       lt packaging gt jar lt  packaging gt        lt name gt demo lt  name gt       lt description gt Demo project for Spring Boot lt  description gt        lt parent gt           lt groupId gt org springframework boot lt  groupId gt           lt artifactId gt spring-boot-starter-parent lt  artifactId gt           lt version gt 1 2 7 RELEASE lt  version gt           lt relativePath  gt   lt  -- lookup parent from repository -- gt       lt  parent gt        lt properties gt           lt project build sourceEncoding gt UTF-8 lt  project build sourceEncoding gt           lt java version gt 1 8 lt  java version gt           lt start-class gt com example DemoApplication lt  start-class gt       lt  properties gt        lt dependencies gt           lt dependency gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter-web lt  artifactId gt           lt  dependency gt            lt dependency gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter-test lt  artifactId gt               lt scope gt test lt  scope gt           lt  dependency gt       lt  dependencies gt        lt build gt           lt plugins gt               lt plugin gt                   lt groupId gt org springframework boot lt  groupId gt                   lt artifactId gt spring-boot-maven-plugin lt  artifactId gt               lt  plugin gt           lt  plugins gt       lt  build gt     lt  project gt    I am using Java 1 8 with STS

User · Answer

Mine worked by adding   lt  -- https   mvnrepository com artifact org springframework boot spring-boot-autoconfigure -- gt   lt dependency gt       lt groupId gt org springframework boot lt  groupId gt       lt artifactId gt spring-boot-autoconfigure lt  artifactId gt       lt version gt 2 1 3 RELEASE lt  version gt   lt  dependency gt    instead of directly using other main dependencies  I have no idea why

User · Answer

Delete the repository folder from  C  Users usename m2  and create again or update maven project

User · Answer

It s not necessary to remove relative path  Just change the version parent of springframework boot  The following version 2 1 2 works successfully    lt  xml version  1 0  encoding  UTF-8   gt   lt 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 xsd maven-4 0 0 xsd  gt       lt modelVersion gt 4 0 0 lt  modelVersion gt       lt parent gt           lt groupId gt org springframework boot lt  groupId gt           lt artifactId gt spring-boot-starter-parent lt  artifactId gt           lt version gt 2 1 2 RELEASE lt  version gt           lt relativePath  gt   lt  -- lookup parent from repository -- gt       lt  parent gt       lt groupId gt com appsdeveloperblog app ws lt  groupId gt       lt artifactId gt mobile-app-ws lt  artifactId gt       lt version gt 0 0 1-SNAPSHOT lt  version gt       lt name gt mobile-app-ws lt  name gt       lt description gt Demo project for Spring Boot lt  description gt        lt properties gt           lt java version gt 1 8 lt  java version gt       lt  properties gt        lt dependencies gt           lt dependency gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter-web lt  artifactId gt           lt  dependency gt            lt dependency gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter-test lt  artifactId gt               lt scope gt test lt  scope gt           lt  dependency gt           lt dependency gt               lt groupId gt com appsdeveloperblog app ws lt  groupId gt               lt artifactId gt mobile-app-ws lt  artifactId gt               lt version gt 0 0 1-SNAPSHOT lt  version gt           lt  dependency gt       lt  dependencies gt        lt build gt           lt plugins gt               lt plugin gt                   lt groupId gt org springframework boot lt  groupId gt                   lt artifactId gt spring-boot-maven-plugin lt  artifactId gt               lt  plugin gt           lt  plugins gt       lt  build gt    lt  project gt

User · Answer

Maybe there is a problem with the JAR files in the local Maven repository  Try deleting the  m2 repository folder and hit Maven -  Update Project    another time to trigger Maven to download the dependencies again  I tried it and it worked for me

User · Answer

If the below step not work   Replaced my Spring Boot 1 4 2 RELEASE to 1 5 10 RELEASE   Right click on project and -  Maven-  Download Resources right click on project -  Maven-  Update project   The reason for this error might be multiple version of the same is downloaded into your maven local repository folder   So follow below steps to clear all existing repository jars and download all from beginning based on dependencies defined in your POM xml     Go to build path   Check Maven Repository in the libraries added section  Choose any jar and mousehover    it will show the local repository location  generally it is   user  m2 repository      Go to the location   and remove the repository folder contains  Now right click on your project    do Maven --  maven update   This will solve your dependencies problem   as Maven will try to download all the items again from repository and build the project

User · Answer

Try this  It might work for you too    Open command prompt and go to the project folder   Build project  For Maven  Run mvn clean install  After successful build    Open your project on any IDE  intellij   eclipse   Restart your IDE incase it is already opened     This worked for me on both v1 5 and v2 1

User · Answer

I had the same problem when I was trying to work with a basic spring boot app  I tried to use the latest spring-boot version from the official spring-boot site   As on today  the latest version is 1 5 4 RELEASE  But I keep getting compilation issues on my eclipse IDE irrespective of multiple cleanups to the project  I lowered the version of spring-boot to 1 5 3 RELEASE and it simply worked    Some of my earlier projects were using the old version which drove me to try this option

User · Answer

In my project  updated the dependency on spring-boot-starter-parent from 2 0 0 release to 2 0 5 relese  Doing this resolved the issue The import org springframework boot SpringApplication cannot be resolved

User · Answer

change the version of spring boot parent   lt parent gt       lt groupId gt org springframework boot lt  groupId gt       lt artifactId gt spring-boot-starter-parent lt  artifactId gt       lt version gt 1 4 2 RELEASE lt  version gt    lt  parent gt

User · Answer

This answer may be out of topic for most of readers  In my case the dependency didn t update and  mvn clean  didn t work since my wifi network at the office is highly securised  leaving a  connection timed out    same respect github pushes and pulls don t work  I just moved to teathering with my phone and it works   Stupid  out of topic for most  but it may help some very specific cases

User · Answer

From your pom xml  try to remove spring repository entries  per default will download from maven repository  I have tried with 1 5 6 RELEASE and worked very well

User · Answer

When you run your application as an jar  your Manifest MF file should know which class has the main method   To add this information when SpringBoot compiles your code  add start-class property on your pom file   E g     lt properties gt           lt start-class gt com example DemoApplication lt  start-class gt   lt  properties gt

User · Answer

I have this problem when using STS  After edited something  I see that  some workspaces  when create a project will happen this problem  and others will not  So I just create a new project in workspaces will not happen

User · Answer

I have encountered the same problem while my first Spring boot application    In tutorial i could see following dependency to start sample application    Spring Boot 1 4 2 RELEASE  Maven 3  java 8   I have done the same  my Spring STS is recognizing all class but when i am annotating my main class with  SpringBootApplication it s not recognizing this class whereas i could see jar was available in the class path    I have following to resolve issues    Replaced my Spring Boot 1 4 2 RELEASE  to 1 5 3 RELEASE   Right click on project and -  Maven-  Download Resources right click on project -  Maven-  Update project   After that it worked   Thanks

User · Answer

After upgrading Spring boot to the latest version - 2 3 3 RELEASE  I also got this error - Cannot resolve org springframework boot spring-boot-starter-test unknown  Maven clean install  updating maven project  cleaning cache do not help  The solution was adding version placeholder from spring boot parent pom    lt dependency gt      lt groupId gt org springframework boot lt  groupId gt      lt artifactId gt spring-boot-starter-test lt  artifactId gt      lt version gt   spring-boot version  lt  version gt      lt scope gt test lt  scope gt    lt  dependency gt

User · Answer

Solution is change the version of Spring in file pom xml   lt parent gt       lt groupId gt org springframework boot lt  groupId gt       lt artifactId gt spring-boot-starter-parent lt  artifactId gt       lt version gt 1 5 9 RELEASE lt  version gt   lt  parent gt

User · Answer

Right button on project -  Maven -  Update Project   then check  Force update of Snapshots Releases

[java] Spring Boot application can't resolve the org.springframework.boot package

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