failed to push some refs to git@heroku.com

Question

I am getting this error when I am trying push my files into heroku rep.

Ive set autocrlf = false already in gitconfig but this problem is still there. i have also tr

Answer 1

I had similar issue where local build was working fine however when I push my branch onto heroku it would fail to build. Issue was that I had some devDependencies in my package.json which were not installed during npm install which was causing my build to fail.

If you need access to packages declared under devDependencies in a different buildpack or at runtime, then you can set NPM_CONFIG_PRODUCTION=false or YARN_PRODUCTION=false to skip the pruning step.

Also you can move you devDependencies into dependencies...

Answer 2

for me deleting package-lock.json fixed my problem,

1. delete
2. commit changes
3. push again

turns out Heroku accepts only one package.json file :p

Answer 3

For me it started working after setting global username/email.

To set your global username/email configuration:
1. Open the command line.
2. Set your username:

git config --global user.name "FIRST_NAME LAST_NAME"

3. Set your email address:

git config --global user.email "MY_NAME@example.com"

4. Commit

git commit -m "comment"

5. Push to heroku

git push heroku master

BOOM! It worked (atleast for me)