It error build james1.2.2_src .why?

[typu]

error:

C:\james1.2.2_src\build.xml:382: Execute failed: java.io.IOException: CreateProc
ess: chmod go-rwx C:\james1.2.2_src\dist error=2
--- Nested Exception ---
java.io.IOException: CreateProcess: chmod go-rwx C:\james1.2.2_src\dist error=2
        at java.lang.Win32Process.create(Native Method)
        at java.lang.Win32Process.<init>(Win32Process.java:66)
        at java.lang.Runtime.execInternal(Native Method)
        at java.lang.Runtime.exec(Runtime.java:551)
        at java.lang.reflect.Method.invoke(Native Method)
        at org.apache.tools.ant.taskdefs.Execute$Java13CommandLauncher.exec(Exec
ute.java:509)
        at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:329)
        at org.apache.tools.ant.taskdefs.ExecTask.runExecute(ExecTask.java:226)
        at org.apache.tools.ant.taskdefs.Chmod.execute(Chmod.java:178)
        at org.apache.tools.ant.Target.execute(Target.java:153)
        at org.apache.tools.ant.Project.runTarget(Project.java:908)
        at org.apache.tools.ant.Project.executeTarget(Project.java:536)
        at org.apache.tools.ant.Project.executeTargets(Project.java:510)
        at org.apache.tools.ant.Main.runBuild(Main.java:421)
        at org.apache.tools.ant.Main.main(Main.java:149)