public static String forDockerNotInstalled(String messagePrefix) {
    return suggest(
        messagePrefix, "make sure Docker is installed and you have correct privileges to run it");
  }
Generates message for when "target image" isn't configured.

@param messagePrefix the initial message text
@param parameter the parameter name (e.g. 'to.image' or {@literal <to><image>})
@param buildConfigFilename the name of the build config (build.gradle or pom.xml)
@param command an example command for passing the parameter via commandline
@return a suggested fix for a missing target image configuration
jib-plugins-common/src/main/java/com/google/cloud/tools/jib/plugins/common/HelpfulSuggestions.java