I have an errors while building addon on heroku

[ollar]

Sorry if my question is out of scope, but I can not build my addon with heroku ci. Unfortunately I get a rather weak error message:

-----> Build
       Running build

       > ***/[email protected] build /tmp/build_c1030e5f
       > ember build --environment=production

The "from" argument must be of type string. Received null

As I think, a build process was at a very beginning stage and failed. But I can build project locally without any errors. Heroku ci environment: OS: Some Ubuntu, not sure about the version.

Installing binaries
       engines.node (package.json):  14
       engines.npm (package.json):   6

       Resolving node version 14...
       Downloading and installing node 14.18.3...
       Bootstrapping npm 6 (replacing 6.14.15)...
       npm 6 installed

I will be very grateful for any help. Thanks.