MavenError: Failed to execute goal on project: Could not resolve dependencies In Maven Multimodule project

Question

I am trying to create a maven multi-module project. the project is created successfully but when I am trying to use one module as a dependency of another module, it throws an exception. When I create a module using eclipse, I was selecting packaging as a jar, but when the module is created, the packaging tag was not mention in child pom.xml and I manually insert the packaging tag as a jar. following is my parent pom.xml:

<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">
<modelVersion>4.0.0</modelVersion>
<groupId>com.netsol</groupId>
<artifactId>empirecl</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
-------------------------
<modules>
    <module>empirecl-web</module>
    <module>empirecl-dao</module>
    <module>empirecl-service</module>
    <module>empirecl-api</module>
</modules>

Dao Child Module:

<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">
<modelVersion>4.0.0</modelVersion>
<parent>
    <groupId>com.netsol</groupId>
    <artifactId>empirecl</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <relativePath>../pom.xml</relativePath>
</parent>
<artifactId>empirecl-dao</artifactId>
<packaging>jar</packaging>
<name>empirecl-dao</name>
------------------------

Service Child Module:

<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">
<modelVersion>4.0.0</modelVersion>
<parent>
    <groupId>com.netsol</groupId>
    <artifactId>empirecl</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <relativePath>../pom.xml</relativePath>
</parent>
<artifactId>empirecl-service</artifactId>
<packaging>jar</packaging>
<name>empirecl-service</name>

<dependencies>
    <dependency>
        <groupId>com.netsol</groupId>
        <artifactId>empirecl-dao</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <type>jar</type>
    </dependency>
------------------------------------------

The Dao module maven clean and install successfully, but when i trying to use service module, it will generate an following exception:

[ERROR] Failed to execute goal on project empirecl-service: Could not resolve dependencies for project com.netsol:empirecl-service:jar:0.0.1-SNAPSHOT: Failed to collect dependencies at com.netsol:empirecl-dao:jar:0.0.1-SNAPSHOT: Failed to read artifact descriptor for com.netsol:empirecl-dao:jar:0.0.1-SNAPSHOT: Could not find artifact com.netsol:empirecl:pom:0.0.1-SNAPSHOT -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal on project empirecl-service: Could not resolve dependencies for project com.netsol:empirecl-service:jar:0.0.1-SNAPSHOT: Failed to collect dependencies at com.netsol:empirecl-dao:jar:0.0.1-SNAPSHOT

I am trying the find to solution from web, but still the solution is not found. In eclipse when i open the Dependency Hierarchy of service module, it shown the DAO module as a folder not jar. below is the screen shot of Dependency Hierarchy of service module.

enter image description here

The groupId in your parent does not match the groupId referenced? — Gyro Gearless, Jul 10 '14 at 10:12
@GyroGearless thanks, the parent group id is incorrect in post, other wise in project its same. — Harmeet Singh Taara, Jul 10 '14 at 10:17
The things you marked in Eclipse output is the workspace resolution in Eclipse. How does your folder strucuture on your hard disk look like? — khmarbaise, Jul 10 '14 at 10:22
the folder structure is `D:\luna_workspace\empire_club\empirecl`. — Harmeet Singh Taara, Jul 10 '14 at 10:24
it's cause of your root com.netsol:empirecl:pom:0.0.1-SNAPSHOT not installed inside .m2 file. it happen with me when tried to install only sub package needed so I tried to install all the packages and compile worked fine so notice that root package wasn't installed was the difference. — UN..D, Dec 26 '22 at 20:08

score 38 · Answer 1 · answered Jan 12 '15 at 16:50

In case anybody comes back to this, I think the problem here was failing to install the parent pom first, which all these submodules depend on, so the Maven Reactor can't collect the necessary dependencies to build the submodule.

So from the root directory (here D:\luna_workspace\empire_club\empirecl) it probably just needs a:

mvn clean install

(Aside: <relativePath>../pom.xml</relativePath> is not really necessary as it's the default value).

From Eclipse use Run As > Maven build, set goals on clean install. — Leonardo, Mar 19 '21 at 21:06

score 4 · Answer 2 · answered Sep 23 '18 at 17:24

4

In my case I forgot it was packaging conflict jar vs pom. I forgot to write

<packaging>pom</packaging>

In every child pom.xml file

answered Sep 23 '18 at 17:24

Sultan1991

101
6

1

Where did you write it in the pom.xml file ? – TaouBen Feb 11 '19 at 14:21

score 3 · Answer 3 · edited Feb 05 '20 at 06:34

3

My solution was to insert <packaging>pom</packaging> between artifactId and version

<groupId>com.onlinechat</groupId>
<artifactId>chat-online</artifactId>
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>
<modules>
    <module>server</module>
    <module>client</module>
    <module>network</module>
</modules>

edited Feb 05 '20 at 06:34

BStill

894
1
9
33

answered Jul 23 '19 at 12:51

WounderGrifft

31
1

XML Parser doesn't require elements to be in specific order within the same level. How can this be a possible solution? – Vivek Jan 10 '21 at 01:07

score 1 · Answer 4 · answered Feb 08 '21 at 17:14

1

For me, adding the following block of code under <dependency management><dependencies> solved the problem.

<dependency>
    <groupId>org.glassfish</groupId>
    <artifactId>javax.el</artifactId>
    <version>3.0.1-b06</version>
</dependency>

answered Feb 08 '21 at 17:14

Suraj

2,253
3
17
48

score 1 · Answer 5 · answered Jul 31 '21 at 16:58

1

This what worked for me - Go to Java build path --> Order and Export(check JRE system libraries and maven dependencies) in my case these 2 were unchecked.

answered Jul 31 '21 at 16:58

Gitesh kumar Jha

189
3
9

score 0 · Answer 6 · answered Mar 30 '20 at 14:44

My solution:

remove all projects in current workspace
import all again
maven update project (Alt + F5) -> Select All and check Force Update of Snapshots/Releases
maven build (Ctrl + B) until there is nothing to build

It worked for me after the second try.

score 0 · Answer 7 · answered May 27 '22 at 06:51

0

Check with your VPN connection, if you are working in home.

answered May 27 '22 at 06:51

Sanjay hs

1

2

This is no Answer, but a question to the author. Please write things like this as a comment on the question. – 3Fish May 27 '22 at 10:05

score -2 · Answer 8 · edited Jun 03 '21 at 07:45

-2

Delete or close all other projects, and restart netbeans IDE, and try again.

edited Jun 03 '21 at 07:45

StupidWolf

45,075
17
40
72

answered Jun 02 '21 at 23:05

Blas Albir

1
1

MavenError: Failed to execute goal on project: Could not resolve dependencies In Maven Multimodule project

8 Answers8

Linked