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Case

I'm developing a mon react ponent for 2 our projects which uses 2 different version of react-bootstrap.

First one: "react-bootstrap": "^0.33.1"
Second one: "react-bootstrap": "^1.0.0-beta.16"

In library's packages json I have:

{
  "peerDependencies": {
    "react": "^16.13.0",
    "react-bootstrap": "^0.33.1",
    "react-dom": "^16.13.0"
  }
}

The ponent works fine with both (used API remains the same between these 2 versions).

The problem

When I'm trying to install that dependency in second project I get next error:

npm ERR! Could not resolve dependency:
npm ERR! peer react-bootstrap@"^0.33.1" from @pany/[email protected]
npm ERR! node_modules/@pany/lib
npm ERR!   @pany/lib@"1.1.6" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this mand with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.

The question is

How can I specify in peerDependencies that lib can be used in both, 0.33.1 and 1.0.0 versions? Without forcing npm i to ignore these errors using --force flag.

Case

I'm developing a mon react ponent for 2 our projects which uses 2 different version of react-bootstrap.

First one: "react-bootstrap": "^0.33.1"
Second one: "react-bootstrap": "^1.0.0-beta.16"

In library's packages json I have:

{
  "peerDependencies": {
    "react": "^16.13.0",
    "react-bootstrap": "^0.33.1",
    "react-dom": "^16.13.0"
  }
}

The ponent works fine with both (used API remains the same between these 2 versions).

The problem

When I'm trying to install that dependency in second project I get next error:

npm ERR! Could not resolve dependency:
npm ERR! peer react-bootstrap@"^0.33.1" from @pany/[email protected]
npm ERR! node_modules/@pany/lib
npm ERR!   @pany/lib@"1.1.6" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this mand with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.

The question is

How can I specify in peerDependencies that lib can be used in both, 0.33.1 and 1.0.0 versions? Without forcing npm i to ignore these errors using --force flag.

• javascript
• npm
• webpack

Share Improve this question Follow asked Feb 12, 2021 at 10:09 DenisDenis 17822 silver badges1010 bronze badges

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1 Answer 1

Sorted by: Reset to default 4

So, it supports OR operator "react-bootstrap": "^0.33.1 || ^1.0.0-beta.16"

but it doesn't solve the problem 'cause the package is building using old version.

So the solution was in just:

1. Write 2 scripts that patch package.json with correct version in peerDeeps and change package name (from @pany/package to @pany/package-legacy)
2. Update CI/CD pipeline to build both versions of package

Not so clean, but works perfect.

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