How to resolve the transitive dependencies of different versions in npm?

Question

My application depends on npm packages ajv-keywords & @apideck/better-ajv-errors which in turn are dependent on package ajv but of different versions as shown in below errors.

npm ERR! peer dep missing: ajv@^6.9.1, required by [email protected]

npm ERR! peer dep missing: ajv@>=8, required by @apideck/[email protected]

Solutions I tried with no effect -

Installed and executed npm-install-peers
Solution mentioned in https://stackoverflow.com/a/56495651/16958085

Below graph shows how the two packages are loaded -

> npm ls @apideck/[email protected]
`-- [email protected]
  `-- [email protected]
    `-- [email protected]
      `-- [email protected]
        `-- @apideck/[email protected]

> npm ls [email protected]
+-- [email protected]
| `-- [email protected]
|   `-- [email protected]
+-- [email protected]
| `-- [email protected]
|   `-- [email protected]
|     `-- [email protected]
|       `-- [email protected]
|         `-- [email protected]  deduped
`-- [email protected]
  `-- [email protected]
    `-- [email protected]  deduped

Please suggest an appropriate solution to satisfy both the dependencies.

have you tried adding the two versions of ajv in your npm dependencies file — oubaydos, Sep 20 '21 at 14:32
npm doesn't allow us to add two versions of the same package in package.json — Mohtashim Shaikh, Sep 20 '21 at 19:13

score 3 · Answer 1 · answered Sep 22 '21 at 09:26

that's never a fun situation to be in, and can't say either npm nor yarn have ever managed solved this completely/cleanly.

Normally, you'd be stuck waiting for your dependencies to unpin, or upgrade their versions...

That said, not sure if you have a specific requirement to use an older version of ajv-keywords, but the latest ajv-keywords uses ajv v8.

updating your package.json with

"ajv-keywords": "^5.0.0"

and re-running npm install should get you there.

If in doubt, be sure to review their readme to verify the update doesn't imply any unexpected changes for you.

How to resolve the transitive dependencies of different versions in npm?

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