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
Trying to build a project with Hardhat, I have node v15.14.0, and ran the following commands:
npm init -y
npm install --save-dev hardhat
Terminal gives me:
Then I ran:
npx hardhat
But got an error saying:
sh: hardhat: command not found
You should use NPX.
The Node Package eXecute allows us to directly access and execute a package stored (or not) in $ ./node_modules/.bin/your-package.
Using npx hardhat [GLOBAL OPTIONS] <TASK> everything will works fine!
Running npm install --save-dev hardhat again did it for me.
I am working on building the marketplace dapp from dapp university on Youtube. While running truffle compile it gives me the following error
Error: Cannot find module 'babel-register'
In this answer: Error: Cannot find module 'babel-register' someone suggested that I delete package-lock and do npm install again.
but when I searched up how to delete package-lock,I found this Deleting `package-lock.json` to Resolve Conflicts quickly which pretty much says that "don't ever delete package-lock.json."
I am a beginner, any help is appreciated.
Keep in mind that some of the dependencies in that source code are outdated.
I avoided this specific issue by running npm audit fix --force after npm install
I then ran npm install -g npm-check-updates to update all of the packages.
ncu -u will also upgrade those dependecies directly in the json.
Finally, npm update
truffle compile should now work as expected.
Good luck in your blockchain development! I'm just starting myself :)
I recently tried to launch my project on a new computer. I downloaded the source code from its repository and ran npm install to get all the needed packages.
However, when I run npm start or expo start:web, I get the error:
Cannot find module '#expo/metro-config'
I ran npm install #expo/metro-config and the install run without issue, but I still get the “Cannot find module '#expo/metro-config'” error.
The only post I saw regarding this error recommends editing the metro.config.js but I do not use one.
I am on SDK 42, and the project launches fine on my other computer. Any idea what is happening?
FYI, I use to perform this whole operation without any issue until now.
UPDATE:
I ran npm install -g #expo/metro-config and now I get the error Cannot find module 'resolve-from'
So it looks like maybe running npm install -g expo-cli doesn't actually install all the necessary packages? Could it be the issue?
I managed to make it "work" (get other missing packages errors down the line) by reverting to expo-cli 4.7.3. Anything from 4.8.0 and above will cause the error.
Something else is that on a fresh npm install, after running npm install -g expo-cli, if I try to create a project with expo init, I will get the error Error: Cannot find module 'kleur'. Running npm install kleur fix it, but maybe that's also a clue.
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.