maven… Failed to clean project: Failed to delete ..\org.ow2.util.asm-asm-tree-3.1.jar

Question

I use STS(spring tool suite) + maven plugin.

Every time when I run my application using maven-clean I see following error:

[INFO] Scanni         


        

Answer 1

If all steps (in existing answers) dont work , Just close eclipse and again open eclipse .

Answer 2

solved by deleting the target folder manually.

Answer 3

You may also try try -Dmaven.clean.failOnError=false (from Maven FAQ)

Answer 4

Delete the java.exe process in Task Manager and run mvn clean install.It worked for me.

Answer 5

In pre-clean phase I execute with Maven Unlocker program. This program unlock all files and directory for anyone program.

I execute this with maven-antrun-plugin and only in windows systems

<profile>
  <activation>
    <os>
      <family>windows</family>
    </os>
  </activation>
  <build>
    <plugins>
      <plugin>
        <artifactId>maven-antrun-plugin</artifactId>
        <version>1.8</version>
        <executions>
          <execution>
            <phase>pre-clean</phase>
            <configuration>
              <tasks>
                <exec dir="${project.build.directory}" executable="cmd" failonerror="false">
                  <arg value="Unlocker.exe" />
                  <arg value="/S" />
                </exec>
              </tasks>
            </configuration>
            <goals>
              <goal>run</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
</profile>

Answer 6

Probably there are many processes that use sources compiled, could be a server, an old maven instruction or IDE. Sure terminate all processes, stop the server and then execute maven again. If the problem persists, you should close java.exe process.

Regards!