You don't need to add "apexchart" to the gulp config for your RTL template because it's already included in the Metronic template by default. ApexCharts is a built-in chart library in Metronic, so you can use it without any additional configuration. Simply init the necessary JavaScript and HTML elements in your template to use ApexCharts for your charts and graphs.

Refer to the documentation provided for RTL support. The documentation should contain guidance on how to properly configure and adapt widgets and elements for RTL layouts. Here's the link to the RTL documentation for your reference:

https://preview.keenthemes.com/html/metronic/docs/getting-started/rtl

Thanks

It appears you're encountering a configuration error related to Webpack when trying to build a Metronic template. This issue is known to occur in Windows environments. To resolve it, you can apply a workaround by updating the `webpack.config.js` file.

Here's what you can do:

1. Visit this link: https://gist.github.com/KeenthemesHub/9bb8c1cb3e111adca7bd6df1b4272e20#file-webpack-config-js-L114-L116

2. In the `webpack.config.js` file, locate lines 114 to 116.

3. Replace these lines with the content provided in the link.

This update should resolve the configuration issue you're facing on Windows. After making the change, try running the build command again:

npm run build --rtl