Error when trying to list Metadata

[tgentet-obrien]

Hey,

I keep on getting an error when trying to run this on a SF instance:

BUILD FAILED
/Users/timothygentet-obrien/sf_ant/generateXML/GeneratePackage_xml.xml:211: The following error occurred while executing this line:
/Users/timothygentet-obrien/sf_ant/generateXML/GeneratePackage_xml.xml:157: The following error occurred while executing this line:
/Users/timothygentet-obrien/sf_ant/generateXML/GeneratePackage_xml.xml:81: Problem: failed to create task or type antlib:com.salesforce:listMetadata
Cause: The name is undefined.
Action: Check the spelling.
Action: Check that any custom tasks/types have been declared.
Action: Check that any <presetdef>/<macrodef> declarations have taken place.
No types or tasks have been defined in this namespace yet

This appears to be an antlib declaration. 
Action: Check that the implementing library exists in one of:
        -/Users/timothygentet-obrien/Applications/ant/lib
        -/Users/timothygentet-obrien/.ant/lib
        -a directory added on the command line with the -lib argument


Total time: 0 seconds

Could it be because I am using a Mac?

[JitendraZaa]

Can you confirm if Salesforce Metadata jar file is in path ? It seems searching for Metadata tool from Salesforce

[sghparam]

I am getting the same error...all the config is as per instructions...

[JitendraZaa]

Please make sure Metadata API jar file from Salesforce is in class path.

Can you please suggest how to dynamically generate package.xml based on the commits in github by passing commit id?

[FeiyangGao]

I met the same question, I put the ant-salesforce.jar into %ant_home%/lib, then, I can run this program.