build is failing

[Sandeepgsn]

While building sample project its breaking
BUILD FAILED
Target "build.xml" does not exist in the project "AWS Flow Framework Samples".

Total time: 0 seconds
AwsFlowFramework username$ ant
Buildfile: /Users/username/myproject/mine/aws-swf-flow-library/src/samples/AwsFlowFramework/build.xml

compile:
[mkdir] Created dir: /Users/username/myproject/mine/aws-swf-flow-library/src/samples/AwsFlowFramework/bin
[mkdir] Created dir: /Users/username/myproject/mine/aws-swf-flow-library/src/samples/AwsFlowFramework/tmp
[mkdir] Created dir: /Users/username/myproject/mine/aws-swf-flow-library/src/samples/AwsFlowFramework/bin/classes
[mkdir] Created dir: /Users/username/myproject/mine/aws-swf-flow-library/src/samples/AwsFlowFramework/bin/private/apt_generated
[javac] /Users/username/myproject/mine/aws-swf-flow-library/src/samples/AwsFlowFramework/build.xml:28: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds
[javac] Compiling 92 source files to /Users/username/myproject/mine/aws-swf-flow-library/src/samples/AwsFlowFramework/bin/classes

BUILD FAILED
/Users/username/myproject/mine/aws-swf-flow-library/src/samples/AwsFlowFramework/build.xml:28: /Users/username/myproject/mine/aws-swf-flow-library/src/third-party does not exist.

[JisongLiu]

Meet the same question. Have you solved it in the end?