I had several problems when downloading truffle -g. I had Error: EACCES: permission denied error. On my final attempt, I used sudo chown -R $USER /usr/local/lib/node_modules, and was able to download it successfully.
Issue
After downloaded Truffle, when I ran the command "truffle init" , I get an error that says command not found. Then I ran the command
"npx truffle init"
truffle inits successfully. But when I cd into my project folder and do "npx truffle init", I get an error
Error: Cannot find module '#truffle/db-loader'
Environment
Operating System: MacOS
Ethereum client:
Truffle version (truffle version): Truffle v5.5.25 (core: 5.5.25)
Ganache v7.4.0
node version (node --version): v16.15.1
npm version (npm --version): 8.11.0
I was trying to create a project with the npx hardhat and npm error comes out stating could not determine executable to run...
what do you suggest to do-like how can i run npx hardhat command and create my project successfully
maybe you have a typo. Try:
npx hardhat --version
I'm trying to deploy a Smart Contract, before that I need to run truffle compile but I get the error
bash: truffle: command not found
I've installed truffle with npm globally and locally, I tried these commands (worked for someone else in my course)
npm init
npm i truffle
./node_modules/.bin/truffle init
but when I run
npm i truffle
I get "unsupported architecture" amongst tons of other errors. all of these fixes are not working, how can I fix this problem from the root of it?
Also trying sudo:
sudo npm install -g truffle
does install it i guess but also gives the error:
truffle#5.4.14 postinstall /Users/khalidhamid/.npm-
global/lib/node_modules/truffle
> node ./scripts/postinstall.js
Error: EACCES: permission denied, open
'/Users/khalidhamid/Library/Preferences/truffle-
nodejs/config.json'
regardless, it still gives truffle: command not found
Is there any specific reason to install truffle using npm i truffle in your project? I mean, just install it globally and cd into your new directory and use truffle init to craft a new project. This way you can use truffle architecture to write your contracts and also use all available truffle commands. Also using truffle config file you can change the solidity compiler version according to your needs.
I was trying to create a new project in cypress and I got the following strange error message.
Steps:
npm init -y
npm install cypress --save-dev
I then did npx open cypress and I got the following message from my console
How do I fix this?
Cypress cannot run because this binary file does not have executable permissions here:
/Users/myName/Library/Caches/Cypress/7.5.0/Cypress.app/Contents/MacOS/Cypress
Reasons this may happen:
- node was installed as 'root' or with 'sudo'
- the cypress npm package as 'root' or with 'sudo'
Please check that you have the appropriate user permissions.
You can also try clearing the cache with 'cypress cache clear' and reinstalling.
----------
Platform: darwin (20.5.0)
Cypress Version: 7.5.0
You can do two things:
Run the command npm cypress cache clear and then again install cypress npm install cypress --save-dev and check.
Or, install npm globally without sudo using the command npm install -g. Then create a new folder and then run npm init, npm install cypress --save-dev and npx cypress open.
Do navigate to the cache directory by doing
cd /Users/myName/Library/Caches/
Here you have to delete Cypress directory completely by running the command
rm -rf Cypress
Now head over to your project directory and run the command
npx install cypress
Cypress will be installed in your system again. Next time you won't get any errors.
So, I had a chat with the dev team at Cypress and got the following answer. After reading the logs I had a feeling this might be the root cause. So please check you have the most up to date version of Node.js
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.