安装Protractor-Cucumber相关依赖时遇domino版本匹配错误求助

Hey there, let's break down what's causing this issue and fix it step by step!

The Core Problem #

Looking at your package.json, the root issue is a version mismatch in your Angular dependencies:

• All your main Angular packages (@angular/animations, @angular/common, etc.) are on version 6.0.0
• But @angular/platform-server is stuck on ^2.0.1, which is way older and incompatible with Angular 6.

This outdated @angular/platform-server is forcing npm to look for domino@2.0.1—a version that's likely no longer available in the npm registry or conflicts with your project's newer dependencies.

Step-by-Step Solution #

1. Fix the Angular Platform Server and Domino Versions
   First, remove the mismatched packages:

   npm uninstall @angular/platform-server domino
   

   Then install versions that match your Angular 6 setup:

   npm install @angular/platform-server@6.0.0 domino@^2.1.4 --save
   

   Note: domino@2.1.4 is the compatible version for Angular 6.x.

2. Clean Up npm Cache
   Clear any cached outdated dependency data to avoid conflicts:

   npm cache clean --force
   

3. Reinstall All Dependencies Fresh
   Delete your existing node_modules and lock file to start with a clean slate:

   # For macOS/Linux
   rm -rf node_modules package-lock.json
   
   # For Windows (Command Prompt)
   rmdir /s /q node_modules && del package-lock.json
   

   Then reinstall all dependencies:

   npm install
   

4. Install Your Protractor-Cucumber Dependencies
   Now try installing the original dependencies again—this should work without the domino error:

   npm install --save-dev protractor-cucumber-framework cucumber chai chai-as-promised @types/cucumber @types/chai @types/chai-as-promised
   

Why This Works #

By aligning all your Angular package versions to 6.0.0, you eliminate the cross-version dependency conflict. The newer compatible domino version will be pulled in automatically, and npm won't try to fetch the unavailable 2.0.1 version anymore.

内容的提问来源于stack exchange，提问作者simond