Error: EACCES: permission denied, mkdir

                
                        add sudo , example sudo npm i nodemon -g
                    
                

npm EACCES: permission denied, access '/usr/local/lib'

                        
                                sudo chown -R $(whoami) ~/.npm

mkdir ~/.npm-global
npm config set prefix '~/.npm-global'
export PATH=~/.npm-global/bin:$PATH
source ~/.profile
                            
                        

Error: EACCES: permission denied, access '/usr/local/lib/node_modules'

                        
                                sudo npm install -g nodemon
//easiest fix
                            
                        

Error: open failed: EACCES (Permission denied) react native

                        
                                android:requestLegacyExternalStorage="true"

in androidManifeast.xml

<application
 android:name=".MainApplication"
 android:label="@string/app_name"
...
...

android:requestLegacyExternalStorage="true"

/>
                            
                        

npm ERR! path /usr/local/lib/nodejs/node-v10.15.3-linux-x64/lib/node_modules while installing angular cli

                        
                                It's not recommended to use sudo with npm install, follow the steps from npmjs official docs instead :)

Make a directory for global installations:

mkdir ~/.npm-global

Configure npm to use the new directory path:

npm config set prefix '~/.npm-global'

Open or create a ~/.profile file and add this line:

export PATH=~/.npm-global/bin:$PATH

Back on the command line, update your system variables:

source ~/.profile

Test: Download a package globally without using sudo.

npm install -g typescript

    Source: https://docs.npmjs.com/getting-started/fixing-npm-permissions
                            
                        

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