build failing when running yarn.cmd from maven pom

[Socdaal20]

I have a multi module project with maven that builds and the front end and puts it to the jar,  but when maven gets to running running the yarn.cmd I am getting the below error:

[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.5.0:exec (exec-yarn-install) on project *******: Command execution failed. Cannot run program "yarn.cmd" (in directory "/opt/atlassian/pipelines/agent/build/*******"): error=2, No such file or directory -> [Help 1]org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.5.0:exec (exec-yarn-install) on project : Command execution failed.	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)

I am using 

image: atlassian/default-image:2

Here is my pom:

<groupId>org.codehaus.mojo</groupId>
    <artifactId>build-helper-maven-plugin</artifactId>
    <version>3.0.0</version>
    <executions>
        <execution>
            <id>obj-uptodate</id>
            <goals>
                <goal>uptodate-property</goal>
            </goals>
            <configuration>
                <name>build.script</name>
                <value>skip</value>
                <else>prod</else>
                <fileSet>
                    <directory>${project.basedir}/src</directory>
                    <outputDirectory>${project.basedir}/target/classes/static}</outputDirectory>
                    <includes>
                        <include>*/**</include>
                    </includes>
                    <mapper>
                        <type>merge</type>
                        <from>*.*</from>
                        <to>index.html</to>
                    </mapper>
                </fileSet>
            </configuration>
        </execution>
    </executions>
</plugin>

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>exec-maven-plugin</artifactId>
    <executions>
        <execution>
            <id>exec-yarn-install</id>
            <phase>initialize</phase>
            <configuration>
                <executable>yarn.cmd</executable>
                <arguments>
                    <argument>install</argument>
                    <argument>--production=false</argument>
                   
                </arguments>
            </configuration>
            <goals>
                <goal>exec</goal>
            </goals>
        </execution>
        <execution>
            <id>exec-npm-build</id>
            <phase>compile</phase>
            <configuration>
                <executable>npm.cmd</executable>
                <arguments>
                    <argument>run</argument>
                    <argument>build:${build.script}</argument>
                    <argument>--</argument>
                    <argument>--output-path=target/classes//static</argument>
                </arguments>
            </configuration>
            <goals>
                <goal>exec</goal>
            </goals>
        </execution>
    </executions>
</plugin>

image: atlassian/default-image:2

[Darin Hafer]

You might try running 'which yarn' at your command line to be sure you have it installed. Then, remove the .cmd and try this:

                <executable>yarn</executable>