I'm trying to install expo globally on my Windows 10 machine for a school assignement.
As the doc says, I've been trying the following command in my terminal :
$ npm install --global expo-cli
but it always gives me the same error :
npm ERR! Cannot read property 'matches' of undefined
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\User\AppData\Local\npm-cache\_logs\2021-04-07T13_43_16_562Z-debug.log
I've tried running $ npm install -g expo-cli instead but the same thing happens.
I haven't tried reinstalling node or anything yet because I need my pc up and running for this week and I'm not too accustomed to all that, I'd like to keep that a last resort if possible.
Has anyone ever encountered this error before ?
Thanks to those who replied but I "accidentally" fixed it myself.
Through my searching I ended up actually uninstalling node with $ nvm uninstall v15.0.0 and I found myself obligated to download it again here.
Must've been a problem with the version I was using as suggested before.
Try removing the node_modules folder and package-lock.json file and run command npm install.
I’m getting that message after installing express globally.
I went through most of the solutions related to the /.bash_profile file and about exporting the correct PATH, but it still nothing works.
I tried this solution https://superuser.com/a/1081802 and it worked on the terminal, but when I close it and tried to execute the command express followed by the file I wanted to use, it ended up showing the same message.
Please help!
So I was looking for other kinds of solutions, and I remembered that I installed via the website and not by home-brew. Just in case, I uninstalled it and installed node again.
I run this:
npm install express -g
npm install express-generator -g
And up to this point it is now working.
I want to delete npm from my system and start with a clean slate. So I run sudo apt remove npm.
Now, I called npm -v and it returned 6.13.7.
What dose that mean? is it possible that I have two or more installations of npm on my system? which one is considered "global"?
If I run whereis npm I get /usr/local/bin/npm and ls over there tells me its a soft link that points to /usr/local/lib/node_modules/npm
Should I simply rm * the folder and the link?
OK, took my risk and rm'ed the library and link. I did the trick. Now calling whereis npm returns an empty list and npm -v returns an error message.
So it probably was a path problem caused by improper installation process for node and npm in the first place.
I installed truffle through npm with the following:
sudo npm install -g truffle
but when I run truffle list on the console it just gives me
bash: truffle: command not found
I had a similar problem. I ran npm i -g truffle and then when I tried to run truffle init I got an error: zsh: command not found: truffle. What solved it for me is to create a local node_modules with truffle installed in it, and then run that copy.
run npm init and make a new npm project
run npm i truffle
run ./node_modules/.bin/truffle init and it should work!
Please make sure you have the latest version of npm and node installed. I had the same issue, I updated npm and node to latest version and it worked.
npm install -g truffle works.
After installing truffle:
npm install -g truffle
Run on your project folder:
npx truffle init
I did it on a Virtual box and had the same issue, but it worked after I restarted the computer. Hopefully that works for you too
You should add the following to your path system variable.
C:\Users\UserName\AppData\Roaming\npm
(This folder contains the truffle.cmd file)
I have tried and it works.
I tried everything. Followed the instruction on official truffle website and above answers.
Still it didn't seem to worked.
Finally, this worked for me.
Go to C:\Users\Username\AppData\Roaming\npm
There you will find truffle.cmd Double click on it and your done.
npm i truffle does the exact same thing as npm install -g truffle except that installs it globally, and without -g it will be installed on the local folder. Try to update the npm, node, and probably you have a broken node installation from previous versions.
Using npm install -g truffle worked for me instead of npm i truffle
Nothing above worked for me, but I did:
nix truffle unbox react
truffle develop
atom . //opens up the react file project in the atom platform
Try to start with your command like
npx truffle <your command>
You should add C:\Users\UserName\AppData\Roaming\npm (it contains truffle.cmd file) to the path user variables. I have tried and it works
If you have a custom path for your packages, then make sure that you are exporting it when the terminal loads.
For bash:
nano ~/.profile
For zsh:
nano ~./zshrc
And add your custom path, most of the time this will be "npm-global".
export PATH=~/.npm-global/bin:$PATH
These are two simple steps the properly solve this problem for Linux Users:
1- Configure npm to install software globally in your home directory as follows :
mkdir ~/.npm-global
npm config set prefix '~/.npm-global'
2- If you are using bash, then execute the following:
echo -n "export PATH=~/.npm-global/bin:$PATH" >> ~/.profile
However, if you are using zsh instead, then execute the following command:
echo -n "export PATH=~/.npm-global/bin:$PATH" >> ~/.zshrc
Note that, if you are using both bash and zsh, it is better to execute the two commands above.
I have executed command -
npm install migrate
and it has executed successfully. But when I try to execute the command migrate in terminal it gives me error as migrate command not found
Please find image here.
Has anyone got the same error?
try installing it globally
npm install migrate -g
I have two solutions to this problem.
The first is to attempt to install the package globally.
npm install -g migrate
If above solution not worked, it could be due to the current user's undefined ExecutionPolicy.
As an administrator, run the following PowerShell command:
Set-ExecutionPolicy RemoteSigned