How to fix error cannot find module @microsoft/sp-build-web.When trying the sp-dev-ebpart samples

Question

I have been trying to build the https://github.com/SharePoint/sp-dev-fx-webparts

I have gone through the instructions and reinstalled and installed but no luck I am now getting the error:

Cannot find module @microsoft/sp-build-web

Any ideas what I am doing wrong here. This happens after running - gulp build or gulp serve.

Thanks in Advance.

I get the above error when I run npm install @microsoft/sp-build-web.

Thanks in Advance.

Answer 1

@microsoft/sp-build-web should be installed when you run npm install the first time.

In package.json, this is referenced in the devDependencies section:

"devDependencies": {
    "@microsoft/sp-build-web": "1.4.1",
    "@microsoft/sp-module-interfaces": "1.4.1",
    "@microsoft/sp-webpart-workbench": "1.4.1",
    "@types/chai": "3.4.34",
    "@types/mocha": "2.2.38",
    "@types/prop-types": "ts2.4",
    "ajv": "~5.2.2",
    "gulp": "~3.9.1",
    "webpack-bundle-analyzer": "^2.13.1"
}

As to why this was not installed in your case, there seems to be an issue with this particular sample.

Reference: Keep getting "Verification failed while extracting @microsoft/[email protected]".

To correct this, delete the file package-lock.json and run npm install again.