error: cannot unlink /home/cnb/.npmrc because it is not a symlink

[willchui]

pack build nodejs-sample --path .. --volume /Users/xx/.npmrc:/home/cnb/.npmrc --buildpack paketo-buildpacks/nodejs --builder paketobuildpacks/builder:base

I am attempting to use the Paketo Node.js buildpack to create an image while binding my .npmrc file. It works fine when using npm alone, but if my project is utilizing Yarn, it returns an error: 'cannot unlink /home/cnb/.npmrc because it is not a symlink'

Executing launch environment install process
  Running 'yarn install --ignore-engines --frozen-lockfile --modules-folder /layers/engine_yarn-install/launch-modules/node_modules'
    yarn install v1.22.19
    warning package-lock.json found. Your project contains lock files generated by tools other than Yarn. It is advised not to mix package managers in order to avoid resolution inconsistencies caused by unsynchronized lock files. To clear this warning, remove package-lock.json.
    [1/4] Resolving packages...
    [2/4] Fetching packages...
    [3/4] Linking dependencies...
    [4/4] Building fresh packages...
    Done in 0.60s.
    Completed in 955ms

Configuring launch environment
  NODE_PROJECT_PATH -> "/workspace"
  PATH              -> "$PATH:/layers/engine_yarn-install/launch-modules/node_modules/.bin"

Generating SBOM for /layers/engine_yarn-install/launch-modules
    Completed in 2.696s

cannot unlink /home/cnb/.npmrc because it is not a symlink
ERROR: failed to build: exit status 1
ERROR: failed to build: executing lifecycle: failed with status code: 51

[willchui]

It looks like you have to add an if loop to verify it before unlinking. ((https://github.com/paketo-buildpacks/yarn-install/blob/main/build.go#L283-L288))

		if globalNpmrcPath != "" {
			err = symlinker.Unlink(filepath.Join(homeDir, ".npmrc"))
			if err != nil {
				return packit.BuildResult{}, err
			}
		}

[willchui]

missing type file into bindings folder.