I had this problem with the browser only showing Cannot GET / when executing Gulp .
It turns out, gulp seems a bit flaky and needs a bit of nurturing before it starts working.
This is purely to help get it working. It may be over kill, but if you just want to see it working, this helped me.
The original tutorial https://coursetro.com/posts/code/130/Learn-Bootstrap-4-Final-in-2018-with-our-Free-Crash-Course gave me a few of these issues with an already, pre installed, npm.
I found a few sites that I though might help:
https://www.npmjs.com/package/gulp
It might be worth rewriting the gulpfile.js with the option in the above link just to get the additional dependences. You can change it back later.
If you're here just copying code, you might want to add these dependancies:
npm install gulp
npm install gulp-coffee
npm install gulp-concat
npm install gulp-uglify
npm install gulp-imagemin
npm install gulp-sourcemaps
There's also this link that might help, that has the gulp-cli
npm install --global gulp-cli
npm install --save-dev gulp
Make sure you have the package.json file in the root folder [bs4]. Also make sure you name the additional directories correctly, inside the src folder.
So you should have:
Root directory [bs4]
Inside the root: [src] , gulpfile.js
The gulpfile.js looks like below:
var gulp = require('gulp');
var browserSync = require('browser-sync').create();
var sass = require('gulp-sass');
// Compile sass into CSS & auto-inject into browsers
gulp.task('sass', function() {
return gulp.src(['node_modules/bootstrap/scss/bootstrap.scss', 'src/scss/*.scss'])
.pipe(sass())
.pipe(gulp.dest("src/css"))
.pipe(browserSync.stream());
});
// Move the javascript files into our /src/js folder
gulp.task('js', function() {
return gulp.src(['node_modules/bootstrap/dist/js/bootstrap.min.js', 'node_modules/jquery/dist/jquery.min.js', 'node_modules/popper.js/dist/umd/popper.min.js'])
.pipe(gulp.dest("src/js"))
.pipe(browserSync.stream());
});
// Static Server + watching scss/html files
gulp.task('serve', ['sass'], function() {
browserSync.init({
server: "./src"
});
gulp.watch(['node_modules/bootstrap/scss/bootstrap.scss', 'src/scss/*.scss'], ['sass']);
gulp.watch("src/*.html").on('change', browserSync.reload);
});
gulp.task('default', ['js','serve']);
change directory into $ cd bs4
Add your package.json with npm init -y
Then install npm
Then: npm install bootstrap jquery popper.js --save
Then install gulp globally: npm install gulp -g browser-sync gulp-sass --save-dev
Add your index.html file (make sure you copy the html file as it is written on coursetro.com)
You should end up with a file system like this image:
Then try running: gulp
After running Gulp, you should end up with a file system like this image with styles.css automatically added to the css folder:
(I added the .map files just because Safari was throwing up the error that it couldn't find them).
Also! Make sure you add the write a styles.scss (not styles.css) file and add it to the scss folder
If like me you run into npm errors, try uninstalling npm and the dependences, reboot and install again. If you're patient, it will start to work. For an additional 15 mins rework, it's worth it.
Lastly, before you run gulp. Make sure you send the shell from bs4
$yourCPU:bs4 username$ gulp
I am developing a button ui package for react native. I try to build an example project to test this button. The directory structure is as follows:
my-button/
package.json
index.js
example/
package.json
index.js
I try to use npm link:
cd my-button
npm link
cd example
npm link my-button
In example/node_modules/ I can see my-button symlink, VSCode also can auto complete function in my-button package.
But execute example app will show error:
Unable to resolve module my-button ...
Module does not exist in the module map or in these directories: ...
But the path in the error message is correct.
Don't know where I was wrong, or in React-Native have any special way to deal with link local dependency?
I also tried npm install file:../.. It works fine in this way, but not easy to update dependency in example/ after I edited my-button.
The npm link command doesn't work because React Native packager doesn't support symlinks.
After a little research, I discovered that there are two ways to go about it.
Use haul packager in the example app. Haul supports symlinks, so you can use npm link as usual.
Use local dependency via file:../ and then edit files in node_modules folder or reinstall every time you make changes.
I found Haul to work great for this use-case and even set-up a little starter project that also includes storybook, which is really helpful if you have many components to switch between.
Try wml (https://github.com/wix/wml)
It's an alternative to npm link that actually copies changed files from source to destination folders
# add the link to wml using `wml add <src> <dest>`
wml add ~/my-package ~/main-project/node_modules/my-package
# start watching all links added
wml start
I couldn't always make it work with yarn link. What i found extra useful is yalc:
First install it globally once forever:
npm install -g yalc
In the local library/package (i'll call it my-local-package), and run:
yalc publish
Then in your project which uses my-local-package as a dependency, run:
(if you already have added it with any other way, first uninstall it (npm uninstall -S my-lockal-package)
yalc add my-local-package
npm install
If my-local-package is a native module, then run react-native run-android to link the dependency. (or run-ios)
If you make any change in the my-lockal-package, then:
cd path/of/my-local-package
yalc push //updates the local package
cd path/to/my-project
npm install
react-native run-android (or run-ios)
In case the update hasn't been applied, try to cd android && ./gradlew clean && cd .. and then rerun: react-native run-android.
I'm having the same issue while developing a native module wrapper around an existing native SDK. At first I followed #aayush-shrestha's suggestion to install the package locally. Like this:
npm install ../<package-folder> --save
This works as long as I reference the module via NativeModules. Import it:
import { NativeModules } from 'react-native';
And then access a module called ActualModuleName like this:
NativeModules.ActualModuleName
But it fails when I attempt to import the module by name:
import { ActualModuleName } from 'react-native-actualmodulename'
To make that work I had to first pack the package. Run this in the package's root directory:
npm pack
This generates a gzipped tarball:
react-native-actualmodulename-1.0.0.tgz
Now install that in your app:
npm install <path/to>/react-native-actualmodulename-1.0.0.tgz
An enormous downside to this is that you have to re-pack the package every time you make a change to the module. The only workaround I know of is to modify the package's files in node_modules directly and then copy those changes back to your repo when you're done.
But the upside is that your app's source can import ActualModuleName the same way you'll import it once it's released via npm; no environment-specific code necessary.
You can use npm link using Metro. Just add the source folder of the linked package to watchFolders in your metro.config.js.
Ran into the same problem. While I could not make npm link work as it should, I worked around it by installing the local package in the project folder
npm install ../<package-folder> --save
This will install the package like a regular package but from the local folder.
The downside is that the changes you make on the package will not be reflected. You will have to npm install after every change.
Change your package.json
//...
"dependencies": {
//...
"my-button" : "file:../"
},
//...
I also came across this problem. After visiting the below link, I came to know that react- native does not support symlinks.[Click here][1]
However, I have solved this by adding these lines in the metro.config.js file. Please replace your_module_name with your module name.
const path = require('path');
const thirdPartyPath = path.resolve(__dirname + '/../your_module_name/'); // Path of your local module
const thirdParty= {
'your_module_name': thirdPartyPath,
};
const watchFolders = [ thirdPartyPath];
module.exports = {
// existing dependencies
resolver: {
thirdParty,
},
watchFolders
};
I ran into the same problem.
I tried to install a local module using npm, and kept running into the issue of not being able to resolve the module, even though I could see the folder in node_modules and autocomplete of class and method names worked.
I was able to bypass it by installing the local library using yarn instead of npm after seeing this open issue on github. Issue was opened September 2020 and no comment from Facebook as of yet.
This work for me:
step 1 go to package:
npm link packageNameHere
This will link this package to global node_module
step 2 go to directory which you want to use this package and run these
npm link pathToPackageDirectory
npm install pathToPackageDirectory
ex: npm link ~/myDemoPackage
This will link global node_moudle to this project
If you want to import package to file, USE FILE PATH INSTEAD OF PACKAGE NAME !
ex:
my package name is stripe-api-helper. my code are in src/index.ts
then I need to resolve like this:
import { postStripe, Item } from '#aliciaForDemo/stripe-api-helper/src'
if u use '#aliciaForDemo/stripe-api-helper' it will fail.
Could never get my own environment working using any other suggestions, but found a hack that works well (though not ideal) that can be easily set up in just a few lines of code and without changing your RN project configuration.
Use fs.watch for changes recursively in the directory where you're working on your library, and copy the updates over whenever there's been a change:
import fs from 'fs'
const srcDir = `./your-library-directory`
const destDir = `../your-destination-directory`
fs.watch("./src/", {recursive: true}, () => {
console.log('copying...')
fs.cp(srcDir, destDir, { overwrite: true, recursive: true }, function() {
console.log('copied')
})
})
For those still looking for a simple solution without other dependency, try this:
yarn --version
1.21.1
npm --version
6.13.4
Install in project root
cd my-button
yarn install or npm install
register linking in my-button
yarn link or npm link
Install example project
cd example
yarn add ../ or npm add ../
link to my-button
yarn link my-button or npm link my-button
complete pod installation (if necessary)
cd ios
pod install
Try to run
npm run watch
inside the button package. Currently, I'm using this to apply changes from the library to my main project. Please let me know if it works!
From the instructions page of gulp, it's asked to install it globally as well as in the project as dev dependency.
My question is why do we need to install it twice? Why can't the project one use the global one?
and I do get this error prompting to install it locally and I've followed this tutorial as well but still stuck. http://blog.webbb.be/command-not-found-node-npm/
[11:47:51] Local gulp not found in ~/Documents/project
[11:47:51] Try running: npm install gulp
Link-> https://github.com/gulpjs/gulp/blob/master/docs/getting-started.md
The error means you didn't install gulp locally. This means you have to add it to your dependencies in package.json (or just call npm i gulp --save).
It needs to be installed locally because gulpfile.js typically runs some code related to gulp. That's why it calls var gulp = require('gulp'); at the top of your gulpfile.js. This call loads gulp from your package node_modules. That's also where functions like gulp.task or gulp.src come from.
At the same you want to easily use gulp in CLI, that's why it needs to be installed also globally so you can run it by just:
$ gulp
Btw, you can also run just your local gulp:
Insert to your package.json:
"scripts": {
"gulp": "gulp",
}
This tells npm that by executing gulp command we want to run script ./node_modules/.bin/gulp.
Run (you'd have to do this in all projects):
$ npm run gulp
So it's definitely easier to install it globally.
In an asp.net core project all the client files must to be copied under the approot directory to be deployed correctly: jspm let you define a proper directory for client deps, but with npm I have to copy the files from node_modules
directory to the approot\node_modules using a gulp task.
Since I'm not interested in filtering or manipulating the files before the deploy, but I just what that the files in the installed module are deployed, there is some way to do this without use gulp ?
You can use npm to do that. Add a script to your package.json:
"scripts": {
"copy": "xcopy from to"
}
Then you can call npm run-script copy to have it executed. I used xcopy as an example, you can use whatever you like. There is some more documentation about scripts in npm.
Hi I'm trying to install Grunt on Windows 7 64 bit. I have installed Grunt using commands
npm install -g grunt
npm install -g grunt-cli
but now if I try to do grunt init, it is throwing me an error -
A valid Gruntfile could not be found. Please see the getting started
guide for more information on how to configure grunt:
http://gruntjs.com/getting-started Fatal error: Unable to find
Gruntfile.
But when I look inside the grunt folder on my system the Gruntfile.js is there. can someone please guide me how to install this grunt properly and how to write built Script using the grunt. I have one HTML page and java script if i wants built a script using Grunt how can i do it?
To setup GruntJS build here is the steps:
Make sure you have setup your package.json or setup new one:
npm init
Install Grunt CLI as global:
npm install -g grunt-cli
Install Grunt in your local project:
npm install grunt --save-dev
Install any Grunt Module you may need in your build process. Just for sake of this sample I will add Concat module for combining files together:
npm install grunt-contrib-concat --save-dev
Now you need to setup your Gruntfile.js which will describe your build process. For this sample I just combine two JS files file1.js and file2.js in the js folder and generate app.js:
module.exports = function(grunt) {
// Project configuration.
grunt.initConfig({
concat: {
"options": { "separator": ";" },
"build": {
"src": ["js/file1.js", "js/file2.js"],
"dest": "js/app.js"
}
}
});
// Load required modules
grunt.loadNpmTasks('grunt-contrib-concat');
// Task definitions
grunt.registerTask('default', ['concat']);
};
Now you'll be ready to run your build process by following command:
grunt
I hope this give you an idea how to work with GruntJS build.
NOTE:
You can use grunt-init for creating Gruntfile.js if you want wizard-based creation instead of raw coding for step 5.
To do so, please follow these steps:
npm install -g grunt-init
git clone https://github.com/gruntjs/grunt-init-gruntfile.git ~/.grunt-init/gruntfile
grunt-init gruntfile
For Windows users: If you are using cmd.exe you need to change ~/.grunt-init/gruntfile to %USERPROFILE%\.grunt-init\. PowerShell will recognize the ~ correctly.
Some time we need to set PATH variable for WINDOWS
%USERPROFILE%\AppData\Roaming\npm
After that test with where grunt
Note: Do not forget to close the command prompt window and reopen it.
I got the same issue, but i solved it with changing my Grunt.js to Gruntfile.js
Check your file name before typing grunt.cmd on windows cmd (if you're using windows).
You should be installing grunt-cli to the devDependencies of the project and then running it via a script in your package.json. This way other developers that work on the project will all be using the same version of grunt and don't also have to install globally as part of the setup.
Install grunt-cli with npm i -D grunt-cli instead of installing it globally with -g.
//package.json
...
"scripts": {
"build": "grunt"
}
Then use npm run build to fire off grunt.