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this is my first time ever working with a framework, I decided to learn Spring Boot to create a web app project. I have followed some tutorials, and the steps were (for most of the videos):

  1. go to start.spring.io, add the "Spring Web" dependency, select Maven project and then download the zip file.
  2. import the project on IntelliJ as a Maven project.

But the problem is that, as shown in the screenshots: it says: Cannot resolve symbol 'springframework' screenshot 1 and as for the POM file, "Failure to transfer org.springframework.boot:spring-boot-starter-parent:pom:2.5.2 from https://repo.maven.apache.org/maven2 was cached in the local repository"

as well as: Project '...' not found Dependency '...' not found Plugin '...' not found screenshot 2

Please let me know, what steps did I miss. Thank you

Meriam Bokri
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  • Are you by any chance behind a proxy? – peterulb Jun 30 '21 at 13:52
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    yes i am, why? @peterulb – Meriam Bokri Jun 30 '21 at 13:55
  • Failure to transfer sounds like a connection issue to the central maven repository. You might need to try this https://www.jetbrains.com/help/idea/settings-http-proxy.html – peterulb Jun 30 '21 at 13:57
  • Or if this doesn't work, try to configure maven directly, see https://stackoverflow.com/questions/15334394/could-not-transfer-artifact-org-apache-maven-pluginsmaven-surefire-pluginpom2 – peterulb Jun 30 '21 at 14:01
  • If you trying it from your office network then you might need to add the settings.xml in .m2 folder to let maven know custom configuration which you wish to use. – ProgrammerBoy Jun 30 '21 at 14:09
  • This project is opened in a network behind proxy. Usually a `settings.xml` is included in the project root directory or you need to ask your colleagues for that `settings.xml`. `settings.xml` contains data such as local repository location, alternate remote repository servers, and authentication information which is to be placed in `~/.m2`. – n0noob Jun 30 '21 at 15:01
  • Welcome to SO. Please check if https://stackoverflow.com/questions/56775550/can-not-resolve-symbol-security-in-spring-boot-application/56775643 can be useful, I guess we've met the same problem of proxy or firewall which blocked the downloading from maven repo. Also please try to run maven from the command line instead of IDE. – Dmitriy Popov Jun 30 '21 at 17:24
  • All the possible solutions are addressed here- https://stackoverflow.com/questions/5074063/maven-error-failure-to-transfer – Caffeine Coder Jul 01 '21 at 09:28

1 Answers1

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Make sure that you can access "https://repo.maven.apache.org/maven2". And check the HTTP proxy settings from Preferences | Appearance & Behavior | System Settings | HTTP Proxy. Select No proxy if you don't need it for accessing the Maven repo. Also, try to disable the downloaded 3rd party plugins temporarily and restart your IDE.

Ethan Yin
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