# add ## Description * Add one or more package (dependency) to the MiniApp ## Syntax `ern add ` **Options** `--dev/-d` * Add the package(s) to the MiniApp `devDependencies` * Checks are not performed to add development dependencies `--peer/-p` * Add the package(s) to the MiniApp `peerDependencies` * Checks are not performed to add peer dependencies\` `--manifestId ` * Id of the override Manifest entry to retrieve dependencies versions from (see [override Manifest](https://native.electrode.io/v0.41/reference/index-3/override) for more info) ## Remarks * The `ern add ` command is the `ern` equivalent of `yarn add` and `npm install` When you work with a MiniApp, always use `ern add` to add packages in place of `yarn add` or `npm install`. * Based on your preference, you can select which package manager (`npm` or `yarn`) to be used by this command to add the package. This can be done by adding or updating `packageManager` field in the `ern` object kept in the MiniApp package.json. For example, to use `npm`. If this field is missing from configuration, `yarn` will be used over `npm` if it is installed on the workstation. ```javascript "ern": { "packageManager": "npm" } ``` * The `ern add ` command performs compatibility checks before adding the package to the project. * You don't need to specify an explicit version for a package that you add using `ern add` as the version to use will be retrieved from the Manifest. If you add an explicit version for a package, it will be ignored. * If the package is declared in the current platform manifest, then the version from the manifest is used. * The `ern add ` command performs the following checks: * If the package is declared in the manifest, then `ern` installs the package at the version declared in the manifest. * If the package is not declared in the manifest, then additional checks are performed: * If the package contains native code in any way (the package itself is a native module or it transitively contains one or more native dependencies, the command denies the package installation until a configuration is added to the manifest for this package. * If the package contains only JavaScript code, then the command proceeds with the package installation without further checks. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://native.electrode.io/v0.41/cli-commands/add.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.