# Common errors

## Domain doesn't resolve to a public IP

- `The given domain <domain> does not resolve to a public IP`

This error indicates that the domain you provided in an `addNetworkDomain()` call doesn't resolved to an accessible IP address. This could be due to a typo in the domain name. However there are some cases where a service assigns IP addresses to subdomains (`foo.example.com`) but not the root domain you are trying to add (`example.com`). If that is the case, either add the subdomain or [contact support](../) to have the root domain manually added to your Pack.

## Missing required developer tooling

- `Error: not found: make`
- `g++: Permission denied`

These errors can occur when installing the SDK locally, specifically during the installation of the `isolated-vm` dependency. They indicate that certain required developer tools are not present on the machine. See the [help documentation](https://github.com/laverdet/isolated-vm#requirements) for this library for more information on how to install these missing packages on your machine.

## Invalid action

- `Unable to execute invalid action`

This error will appear at the bottom of the screen after pressing a button, and indicates that the formula used in the button isn't a valid action. In order for a formula to be used as an action within a button, it must be defined with `isAction: true`. See the [Actions guide](../../guides/blocks/actions/#creating-actions) for more information.

## HTTP response too large

- `RESOURCE_EXHAUSTED: Received message larger than max`

This error indicates that a fetcher request got back a response that is larger than the Packs runtime allows. If you are querying an external API for records, see if you can use a limit or paging parameter to get back a smaller response. If you need to work with large files you'll need to build an application outside of Packs that processes them.

If you only need a small increase in the size limit you can [contact support](../#approvals) to request an adjustment.

## Can't upload from the CLI

- `dyld: Symbol not found: _SecTrustEvaluateWithError`

The Pack CLI uses the `esbuild` library to compile your local code, and [this error](https://github.com/evanw/esbuild/issues/2183) is coming from that library. If you are getting this error on a Mac try updating to macOS 10.13 or later.