Updating deployment - javascript

I recently deployed a nodejs API through Heroku. I want to update the new changes to the deployment but whenever I push (git push Heroku master) I receive an error.
Error: ENOENT: no such file or directory, scandir '/app/seeds'
This started behaving this way after I ran npm install pg

While deploying the changes to Heroku it is unable to find /app/seeds directory and so it will not be able to be pushed to Heroku and this is what causes a problem.
Maybe some of your files do have got deleted. So here what you can do is delete your node_modules folder and just run the command npm install so all your packages should be having completed files and then do git push heroku master.
I also faced a similar issue and it resolved my problem. So can you please give it a try.

Related

Node cannot find path in node_modules / 'react-scripts' is not recognized as an internal or external command

I'm on windows 10
When I run:
npm run start
or
npm start
I get an error:
npm start
> app-test#0.1.0 start
> react-scripts start
'react-scripts' is not recognized as an internal or external command,
operable program or batch file.
What I already tried:
npm ci
remove node_modules and reinstall project
npm audit fix
run command from elevated PowerShell (as admin)
Uninstall Node v.18 win NVM and reinstall common Node installation LTS v.16
Check if react scripts is on dependencies section in package.json - and it's of course there.
Recreate project itself and also create a fresh new React project with npx create-react-app
Clearing npm cache
Nothing's helped me.
BUT This project runs fine WHEN I explicitly tell the node path to subfolder with a script:
app-test> node node_modules/react-scripts/scripts/start.js
Compiled successfully!
You can now view app-test in the browser.
Local: http://localhost:3000
On Your Network: http://192.168.91.1:3000
Note that the development build is not optimized.
To create a production build, use npm run build.
webpack compiled successfully
What's interesting that an old React projects also resided in the parent folder starts normally even I renew node_modules in these projects doing them npm i or npm ci
But any time I try to create and start new React app command npm start fails
UPD1: Tried to create-react-app on any other drive or folder. And it's running ok.
So culprit seems permissions policies in my common working directory ?
UPD2:
I resolved a problem though still have no clear idea who was actually the really culprit of this bug.
I copied all my parent developer folder with all code examples to another drive, then tried to create react app there and out of the blue it worked fine at then new location.
Also I removed this original folder from the drive where it used to be. And do git clone "..." at this directory< recreating the exact structure as it was before all experiments.
Then I tried create-react-app exactly at that location as I've unsuccessfully tried before swapping folders and it was OK !
Tried couple of time with different folder location within parent directory and all sill working fine now !
I remembered now I already have such bug before. And I had to reinstall Windows that time.
I also want to mention that I also have another machine with Windows, another one with Linux and had also laptop with an OSX so I can ( or could) push to this very git repository from any of these computers.
Suggestion of somebody who have any idea, why this bug was happening repeatable would be highly appreciated.
Thanks.

Javascript issue installing npm packages (nodemon, express)

I'm new to js and trying to setup a simple project with express and nodemon via npm.
However, installing these packages does give me multiple errors (see below).
I am on Win 10, using the PowerShell & Atom IDE. Project is saved on Google Drive.
"Calc.js" is simply the name of my project.
I have node & npm installed and restarted pc multiple times before.
Then I set up the npm init
I begin to install the first package and get this error:
I try to install express, but get the same result, adding -g also does not make a difference. Now I install "ci", which works for some reason.
Now I have the node modules folder in my project, try to install express again, and it seems to kinda work (got the files in the node_modules folder).
However when I try to run the calc.js via "node calc.js" it
does not work.
Already tried out many things and even accidentally made it work, then tried to reproduce it and failed. Would be super happy for some help.

react-native, bundling failed

I am new to react-native and have found an error that makes absolutely no sense to me.
I am trying to include a calendar library: https://github.com/wix/react-native-calendars
I have included the dependency for that library in my package.json file and run npm install
The project was running fine and as expected. I have simply added one line of code to the project:
import { Calendar, CalendarList, Agenda } from 'react-native-calendars';
Nothing else. However now I am getting a red error message when the app loads on device and this is what my console is saying:
error: bundling failed: Error: While trying to resolve module xdate
from file
/Users/Alex/Documents/workspace/mobile/node_modules/react-native-calendars/src/index.js,
the package
/Users/Alex/Documents/workspace/mobile/node_modules/xdate/package.json
was successfully found. However, this package itself specifies a
main module field that could not be resolved
(/Users/Alex/Documents/workspace/mobile/node_modules/xdate/src/xdate.js.
Indeed, none of these files exist:
*
/Users/Alex/Documents/workspace/mobile/node_modules/xdate/src/xdate.js(.native||.ios.js|.native.js|.js|.ios.json|.native.json|.json)
*
/Users/Alex/Documents/workspace/mobile/node_modules/xdate/src/xdate.js/index(.native||.ios.js|.native.js|.js|.ios.json|.native.json|.json)
at ResolutionRequest.resolveDependency (/Users/Alex/Documents/workspace/mobile/node_modules/metro/src/node-haste/DependencyGraph/ResolutionRequest.js:103:15)
at DependencyGraph.resolveDependency (/Users/Alex/Documents/workspace/mobile/node_modules/metro/src/node-haste/DependencyGraph.js:272:4579)
at dependencies.map.relativePath (/Users/Alex/Documents/workspace/mobile/node_modules/metro/src/DeltaBundler/traverseDependencies.js:376:19)
at Array.map ()
at resolveDependencies (/Users/Alex/Documents/workspace/mobile/node_modules/metro/src/DeltaBundler/traverseDependencies.js:374:16)
at /Users/Alex/Documents/workspace/mobile/node_modules/metro/src/DeltaBundler/traverseDependencies.js:212:33
at Generator.next ()
at step (/Users/Alex/Documents/workspace/mobile/node_modules/metro/src/DeltaBundler/traverseDependencies.js:297:313)
at /Users/Alex/Documents/workspace/mobile/node_modules/metro/src/DeltaBundler/traverseDependencies.js:297:473
at
However I have checked in the directory and in fact /Users/Alex/Documents/workspace/mobile/node_modules/xdate/src/xdate.js does exist. However I do not see any of this part: (.native||.ios.js|.native.js|.js|.ios.json|.native.json|.json)`
As to how /Users/Alex/Documents/workspace/mobile/node_modules/xdate/src/xdate.js/index can exist, that doesn't make sense because xdate.js is not a directory.
Any help?
It Usually happens if you try to install a module while your packager is open.
Try to delete node_modules folder and close the packager.
Then reinstall everything by npm install in your project directory.
First close your JavaScript bundler (Metro bundler in my case) and restart the application. This will create fresh dependency graph. This should solve the issue.
Just restart the bundler - no need to delete the Node Modules folder
I came across this issue when adding and using react-native-elements when using VS Code and Android Studio emulator on Linux Mint
In VS Code I had a terminal running Expo with Metro Bundler via 'npm start' command. After installing the react-native-elements in the folder (using 'npm install --save react-native-elements') and adding the import into the .js file I got the "However, this package itself specifies a main module field that could not be resolved" error.
In my case, this just involved a ^C in the terminal session to stop the Metro bundler and then running 'npm start' again. There was no need to delete the node modules folder at all.
If you're still getting the error even after deleting the ./node_modules folder and running npm install again, try doing the install with the --update-binary flag, i.e npm install --update-binary. This should clear out and rebuild any previously built packages on your machine.
Please don't delete the node modules folder.
The bundler has least to deal with node modules folder.
Instead close all the terminals. If using VS-code close that also.
Close all the local host server ports and if possible restart the system.
This might solve the issue.
If anyone have same issue, and remove node_module not working. Then you can try remove all node_module, package lock and using yarn to install node_module instead npm. Hope this help
None of the solutions above helped me except for restarting my MacBook. Wasted 30 minutes trying to fix this issue as I couldn't believe restarting my computer could be a solution.

How do I run a copied project in Node.js

https://github.com/gleitz/mahjong
I want to run this app on my windows,
the directions say:
-Install dependencies with npm update
-Start the application with node app.js
it's sound easy so I try myself.
1.Fist of all , I install node.js on it's official website (https://nodejs.org/en/)
I download the 8.9.3 version.
after installing node.js
2.open the command line and go to the project path.
3.then I input the command npm update.
it works,and the node_modules folder is created.But there are some warn message
4.finally input the command node app.js... it's not work with many error message
following is wrong message
I wonder know how should I do.Is any thing I didn't installed?
Please help me.I really want to research this mahjong project.
Before running npm update in the directory where you have your project, you should run npm install first to install all the required dependencies needed for the project to run.
So I advice to delete the node_modules directory that was created after you ran npm update, after which you can then run npm install. This should solve your issue.
Update: If you just want to try it online and not run it locally they've hosted a version on the web: http://gleitzman.com/apps/mahjong.
It's not your fault.
What you did was correct, but the project documentation needs to be updated. It's not a turn-key solution and you'll need to figure a few things out to get it working.
The error message is says it wants a mongo db instance, but you don't have one running. Try the mongodb home page or google for instructions. If you have docker it is pretty easy: docker run -it -p 27017:27017 mongo.
Even after spinning up mongodb I wasn't able to get the app to work locally. You could try contacting the repo maintainer for assistance. They may be happy to help given you've shown interest in their project.
Good Luck!

Github Pages Error Message

I have some questions about gh-pages. I have a githab repository and project
Page as githubpages. In the project directory that I use the
Github repository created has git push, git pull, git build and
git deploy without problems. The site can be found at http://ux.example.com
call. Unfortunately, it is not possible to make the page using https://ux.example.com
call. In the settings, it is explicitly pointed out,
That it is not possible to call custom subdomains with https.
I have on another computer the repository via git clone
downloaded. Git pull, git push, git build works perfectly.
I suspect that the cause is the subdomain. How do I solve the problem?
With git deploy I get the following error message:
yarn run deploy
yarn run v0.27.5
$ gh-pages -d styleguide
fatal: attempt to fetch/clone from a shallow repository
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

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