Build Failure while Creating Custom Extension for Web Services:

[former_member698415]

I have the same problem as this https://answers.sap.com/questions/12758545/build-failure-while-creating-custom-extension-for-.html

but have hybris vertion 19.05.0-RC17

and the answer in the above question doesn't suit me

i followed this instruction

https://help.sap.com/viewer/d0224eca81e249cb821f2cdf45a82ace/1808/en-US/8c0267f486691014a66faf3be00a...

Steps to Create Custom Extension for Web Services:

You can mark one of your own extensions as a webservice extension:

1. Create an extension using the yempty template.
2. Add the new extension to localextensions.xml file.
3. In the command line, go to the platform directory and call: ant.
4. In the command line, go to the new extension directory and call ant webservice_nature -Dextname=customextension.

as a result of 4 steps here is this error