How to redeploy a war on remote Tomcat 7 using maven-tomcat-plugin

Question

I am trying to redeploy a war from my local machine to a remote Tomcat 7 using command prompt in Windows. I am able to upload the war with the tomcat-maven-plugin for the first time but subsequent uploads gives me a message something like this.

pom.xml

 <!-- Deploy to Remote Tomcat -->
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
                <configuration>
                    <url>${unix.tomcat.url}</url>
                    <server>sandbox-tomcat</server>
                    <path>/${project.artifactId}</path>
                </configuration>
            </plugin>

Maven Command:

mvn tomcat7:redeploy

Maven Log:

[INFO] Deploying war to http://secdevapp11.gspt.net:8080/istore-tax-service
Uploading: http://secdevapp11.gspt.net:8080/manager/text/deploy?path=%2Fistore-tax-service&update=true
Uploaded: http://secdevapp11.gspt.net:8080/manager/text/deploy?path=%2Fistore-tax-service&update=true (1334 KB at 512.7 KB/sec)

[INFO] tomcatManager status code:200, ReasonPhrase:OK
[INFO] FAIL - Unable to delete [/nfs/home_04/chandeln/installations/apache-tomcat-7.0.52/webapps/istore-tax-service]. The continued presence of this file may cause problems.
[INFO] FAIL - Application already exists at path /istore-tax-service
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.704s
[INFO] Finished at: Wed Mar 26 15:34:55 EDT 2014
[INFO] Final Memory: 21M/224M
[INFO] ------------------------------------------------------------------------

Answer 1

I also had this problem. For me it worked putting in the update-tag in the tomcat-plugin

        <plugin>
            <groupId>org.apache.tomcat.maven</groupId>
            <artifactId>tomcat7-maven-plugin</artifactId>     
            ... 
            <update>true</update>

            ...

and using the tomcat7:deploy command (and not 'redeploy') again.

(just noticed the answer still was there..., sorry for duplicating)