Variable not pass in job

I try to pass a variable in the job. but there are display empty variable.

Here is my BPMN :
https://gist.github.com/sandipmavani/cf71bd58f710c2237f244adbe7e3cdf6

source code
https://gist.githubusercontent.com/sandipmavani/ee7caa11b95a8c0445406a1e173e704d/raw/afb3ae404e7e76348ca114db28bee80df9db05b5/main.go

Display empty variable
2019/07/17 12:26:44 In job 2251799814899895
2019/07/17 12:26:44 Variable: map[]
2019/07/17 12:26:44 Failed to complete job 2251799814899895

Hi @sandip, This could happen if you have installed a mismatched version of the client lib. Make sure the broker version and client lib version match.

ok done is client lib mismatched issue.