Peer Dependency Conflict with React 19.1.0 in [email protected]

[Rayan-Aguiar]

Peer Dependency Conflict with React 19.1.0 in [email protected]

Description

When installing [email protected] in a project using [email protected], an ERESOLVE error occurs due to a peer dependency conflict. The react-day-picker library specifies a peer dependency of react@^16.8.0 || ^17.0.0 || ^18.0.0, which does not include [email protected].
Steps to Reproduce

Create a project with [email protected] installed.
Add react-day-picker@^8.10.1 to the package.json.
Run npm install.

Error
npm error code ERESOLVE
npm error ERESOLVE could not resolve
npm error While resolving: [email protected]
npm error Found: [email protected]
npm error Could not resolve dependency:
npm error peer react@"^16.8.0 || ^17.0.0 || ^18.0.0" from [email protected]
npm error node_modules/react-day-picker
npm error   react-day-picker@"^8.10.1" from the root project
npm error Conflicting peer dependency: [email protected]
npm error Fix the upstream dependency conflict, or retry
npm error this command with --force or --legacy-peer-deps
npm error to accept an incorrect (and potentially broken) dependency resolution.

Environment

• Operating System: [e.g., Ubuntu 22.04]
• Node.js: [e.g., v20.12.2]
• npm: [e.g., v10.5.0]
• Relevant Dependencies:
  • [email protected]
  • [email protected]
  • @radix-ui/[email protected]

Expected Behavior

The react-day-picker library should install without peer dependency conflicts when used with [email protected].

Actual Behavior

The npm installation fails with an ERESOLVE error due to the peer dependency mismatch with [email protected].

Workaround

Using npm install --force allows the installation to proceed, but this may lead to an incorrect or potentially broken dependency resolution. Similarly, npm install --legacy-peer-deps works but is a temporary solution.

Suggestion

Please consider updating the peer dependency of react-day-picker to include support for [email protected] to ensure compatibility with the latest React versions. Alternatively, providing documentation on handling this incompatibility would be helpful.

Additional Information

• The full error log is available at: /home/rayan/.npm/_logs/2025-07-16T19_04_44_515Z-eresolve-report.txt.
• I am happy to provide further details or test any potential fixes.

Thank you for maintaining this library and for considering this issue!