Deploy to Heroku fails due to multiple package lockfiles

[berezovskyi]

-----> Build failed
 !     Two different lockfiles found: package-lock.json and yarn.lock
       Both npm and yarn have created lockfiles for this application,
       but only one can be used to install dependencies. Installing
       dependencies using the wrong package manager can result in missing
       packages or subtle bugs in production.
       - To use npm to install your application's dependencies please delete
         the yarn.lock file.
         $ git rm yarn.lock
       - To use yarn to install your application's dependences please delete
         the package-lock.json file.
         $ git rm package-lock.json
    
       https://help.heroku.com/0KU2EM53

[andrewssobral]

Same for me, any solution? thanks

-----> Building on the Heroku-22 stack
-----> Using buildpacks:
       1. https://github.com/alex88/heroku-buildpack-vips
       2. https://github.com/heroku/heroku-buildpack-nodejs
-----> VIPS app detected
-----> Installing libvips
       Downloading libvips and unpacking
       libvips installed
-----> Node.js app detected
-----> Build failed
 !     Two different lockfiles found: package-lock.json and yarn.lock
       Both npm and yarn have created lockfiles for this application,
       but only one can be used to install dependencies. Installing
       dependencies using the wrong package manager can result in missing
       packages or subtle bugs in production.
       - To use npm to install your application's dependencies please delete
         the yarn.lock file.
         $ git rm yarn.lock
       - To use yarn to install your application's dependencies please delete
         the package-lock.json file.
         $ git rm package-lock.json
    
       https://help.heroku.com/0KU2EM53
 !     Push rejected, failed to compile Node.js app.
 !     Push failed