How to remove jar file from local maven repository which was added with install:install-file?

maven

mvn install:install-file -Dfile=phonegap-1.1.0.jar -DgroupId?=phonegap -DartifactId?=phonegap -Dversion=1.1.0 -Dpackaging=jar

I use above command to install local jar into maven local repo. Now I have got the dependency from maven repo. I want to remove this from local repo. How to clean it ?

Possible duplicate of How to do remove a projects artifacts from the local maven repo?

Steve Powell

Although deleting files manually works, there is an official way of removing dependencies of your project from your local (cache) repository and optionally re-resolving them from remote repositories.

The goal purge-local-repository, on the standard Maven dependency plugin, will remove the locally installed dependencies of this project from your cache. Optionally, you may re-resolve them from the remote repositories at the same time.

This should be used as part of a project phase because it applies to the dependencies for the containing project. Also transitive dependencies will be purged (locally) as well, by default.

If you want to explicitly remove a single artifact from the cache, use purge-local-repository with the manualInclude parameter. For example, from the command line:

mvn dependency:purge-local-repository -DmanualInclude="groupId:artifactId, ..."

The documentation implies that this does not remove transitive dependencies by default. If you are running with a non-standard cache location, or on multiple platforms, these are more reliable than deleting files "by hand".

The full documentation is in the maven-dependency-plugin spec.

Note: Older versions of the maven dependency plugin had a manual-purge-local-repository goal, which is now (version 2.8) implied by the use of manualInclude. The documentation for manualIncludes (with an s) should be read as well.

I don't believe that this works for .jars that were not downloaded from maven central or some other repository. When I run this command it gets rid of all the .jars that automatically downloaded, but when it gets to the .jars that I manually installed, it outputs this error message:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.8:purge-local-repository (default-cli) on project alloy-generator: Failed to refresh project dependencies for: myartifact: required artifacts missing: [ERROR] manually-downloaded-and-installed.jar ...

Actually, after I checked it, I realized that it does uninstall the .jar, but it still outputs an error. So for .jars which have been manually installed, I would recommend manually deleting rather than using this method, because maven creates some weird files like yourjar.jar.lastUpdated and yourjar.pom.lastUpdated which you may need to manually delete anyway. But if maven managed all the dependencies automatically, this is a great way to uninstall the dependencies.

This approach also requires a maven project in order to run the command. This doesn't appear to work if you ran the install command that the OP specified in the context of say a Gradle build.

You can even remove a complete group with: dependency:purge-local-repository -Dinclude=de.slr -DresolutionFuzziness=groupId

shareef

While there is a maven command you can execute to do this, it's easier to just delete the files manually from the repository.

Like this on windows Documents and Settings\your username\.m2 or $HOME/.m2 on Linux

I would delete only the .m2/repository directory. A coworker has deleted the .m2 directory before and it causes issues because on our project we have to modify the settings.xml file.

Do note that with deleting the .m2/repository directory you will also be deleting all maven plugin files. Whereas using the purge-local-repository command you are deleting only dependencies.

The directory structure under .m2/repository is organized by Maven group ID, so you can just delete the subdirectory corresponding to the artifact you want to remove.

rob2universe

At least on the current maven version you need to add the switch -DreResolve=false if you intend to remove the dependencies from your local repo without re-downloading them.

mvn dependency:purge-local-repository -DreResolve=false

removes the dependencies without downloading them again.

Abimaran Kugathasan

Delete every things (jar, pom.xml, etc) under your local ~/.m2/repository/phonegap/1.1.0/ directory if you are using a linux OS.

When I remove the jar that way, it "re-downloads" the jar from the old folder. May be there are references that need to be removed as well.

Nagesh Vashist

I faced the same problem, went through all the suggestions above, but nothing worked. Finally I deleted both .m2 and .ivy folder and it worked for me.

Kent Yao

cd ~/.m2 git init git commit -am "some comments" cd /path/to/your/project mvn install cd ~/.m2 git reset --hard

This answer might or might not solve the problem, but how about adding some explanation to your answer, this might just help the OP understand what you are trying to show him.

This response is not related to problem: you show the setup of git repository in .m2 folder and reset as git repository.

This should be removed

the idea here is that by puting the repo under git, you can roll back to the clean version. but it will always roll back to the version where you ran git init, unless you start using git add/commit to keep up to date, after which you now have a new set of dependencies. either way, you can't explicitly delete modules. so its essentially useless

How to remove jar file from local maven repository which was added with install:install-file?

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