Solutions to common problems.

Common issues

This section contains a number of common known issues and solutions to fix them.

  • If you get an error proxy: listen udp bind: address already in use. when trying to start the Docker container, there is likely another DNS server already running on your machine. You can configure the DNS_ADDRESS environment variable to bind the DNS server to any IP address that does not conflict with the local setup (e.g., DNS_ADDRESS=, or DNS_ADDRESS=0 to disable the DNS server port entirely).

  • If you get an error ImportError: cannot import name requests (or similar) on pip install localstack, you may have to downgrade your version of pip to 9.x.x, e.g., pip install --upgrade pip==9.0.3. See here for reference.

  • If pip install ... fails with an error like the one below, try installing YAML development libs (e.g., brew install libyaml under Mac OS).

    #include <yaml.h>
    1 error generated.