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## Current Behavior
<!-- This is the behavior we have today -->
## Expected Behavior
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## Related Issue(s)
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merged. -->
Fixes#21889
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## Current Behavior
<!-- This is the behavior we have today -->
We only ever discover one version of an external dependency for the
file-map.json. This means the `@nx/dependency-checks` lint rule can
produce incorrect failures when multiple copies of a dependency exist
within a workspace.
## Expected Behavior
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In the file-map.json the project specific version of a package (if
multiple exist) is preferred and therefore the lint rule produces
accurate results.
---
For example, in a repo where the root package.json has lodash@4.0.0
(which becomes `npm:lodash` on graph) and the foo project has
lodash@3.0.0:
**Before**
**After**
## Performance
`NX_ISOLATE_PLUGINS=true NX_PERF_LOGGING=true NX_DAEMON=false nx show
project nx --json false`
** Before **
Time for 'build typescript dependencies' 505.52144700009376
** After **
Time for 'build typescript dependencies' 701.247584999539
