EBADENGINE warnings while running Apache-Age Viewer - postgresql

Question

So while setting up Apache Age, I ran the command npm run setup and was greeted by the following EBADENGINE warnings.
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE package: 'ag-viewer#0.0.1',
npm WARN EBADENGINE required: { node: '^14.16.0' },
npm WARN EBADENGINE current: { node: 'v18.14.1', npm: '9.3.1' }
npm WARN EBADENGINE }
These warnings followed by numerous other warnings of unsupported dependencies.

Answer 1

The warnings say that my Node Version is other than the required one so the obvious solution was to downgrading my node version.
Documentation from the Apache-Age Viewer's Github Repository recommends using Node version - ^14.16.0 i.e., any version greater than or equal to 14.16.0 but less than 15.
First check your current Node Version by typing node -v and I recommend downgrading it if it's not >= 14.16.0 and <15.
Follow this link for help in downgrading node version.
Check your node version again after downgrading and run npm run setup again.
Hopefully, the warnings will be gone!

Answer 2

While one way is to downgrade the node version manually.
Alternatively you can use nvm Node Version Manager (Windows, Mac or Linux)
Then just open a terminal (admin/sudo):
nvm install 14.16.0
nvm use 14.16.0
npm run setup

Answer 3

The error is actually because of the wrong version of the node installed. I also faced the same error when I did the incorrect installation. You can fix it by deleting the nvm and node from your machine and reinstalling the nvm and correct node version. and run npm run setup after the required installation.
Fixing the error:
To fix this error take a look at following steps:
Delete nvm, npm and node and install it all again.
For uninstalling node run following command:
nvm uninstall 14.16.0
The command if executed successfully will return a success message indicating the version of node deleted.
Uninstalled node v13.10.1
Type following command in terminal for the deletion of nvm
#nvm deactivate will remove the path variables
nvm deactivate
#nvm unload will uninstall the nvm
nvm unload
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion" # This loads nvm
Now the node and nvm is deleted go above and download both of them again and run those commands as well.
npm run setup
npm run start
When you run npm run start, age-viewer will start running on
localhost:3000
You will see a screen like this. Enter the details to start using the age-viewer.

Answer 4

For setting up Apache AGE, you do not need to run the command npm run setup.
This for setting up AGE Viewer.
For setting up AGE: https://github.com/apache/age follow the guidelines.
For setting up AGE Viewer: https://github.com/apache/age-viewer follow the guidelines.