尝试在bitbucket存储库中运行管道

Question

当我尝试运行管道时，出现此错误

+ git push -u origin master
error: src refspec master does not match any.
error: failed to push some refs to 'http://bitbucket.org/jdrftech/jdrf-org'

我的管道是这样写的

# This is a sample build configuration for PHP.
# Check our guides at https://confluence.atlassian.com/x/e8YWN for more examples.
# Only use spaces to indent your .yml configuration.
# -----
# You can specify a custom docker image from Docker Hub as your build environment.
image: node:latest

pipelines:
 branches:
   preprod-jdrf:
     - step:
         script:
           - apt-get update && apt-get install -y unzip git
           - cd mu-plugins/jdrf-core
           - npm install
           - cd ..
           - cd ..
           - git add mu-plugins/jdrf-core/assets/js/*
           - git add mu-plugins/jdrf-core/assets/css/*
           - git add mu-plugins/jdrf-core/assets/data/*
           - git commit -am "initial commit done"
           - git push -u origin master
           - echo "Pushed to PreProd New"

请让我知道管道错误。预先感谢。