fastlane sigh issue with input asking for more information - fastlane

Question

I'm trying to use sigh and I am a bit confused. When I type the below line:
sigh username:"me#example.com" app_identifier:"com.example"
It logs in with my user name but then gives me the prompt:
[21:19:44]: Successfully logged in
[21:19:44]: Fetching profiles...
[21:19:44]: To not be asked about this value, you can specify it using 'app_identifier'
The bundle identifier of your app:
When I type the below line:
sigh -a com.example -u me#example.com
I do not get the prompt. What am I doing wrong in the first one? The first one from what I understand is what I can use in the fastlane file for automation, which is why this is important. I read the below on this:
https://github.com/fastlane/fastlane/tree/master/sigh
as well as the sigh --help documentation.
My lane is defined as below:
desc "Get the provisioning profiles for the app"
lane :sign do |options|
apple_id = CredentialsManager::AppfileConfig.try_fetch_value(:apple_id)
team_id = CredentialsManager::AppfileConfig.try_fetch_value(:team_id)
cert(username: apple_id, team_id: team_id)
sigh(app_identifier: options[:bundle_id], username: apple_id)
end
The part where sigh is I get the same prompt. Is there a way to remove it?
UPDATE
The following works:
sigh --username "me#example.com" --app_identifier "com.example"
But I want it to work in fastlane. What am I doing wrong there?

Answer 1

sigh username:"me#example.com" app_identifier:"com.example"
That syntax is not supported, instead try the following from the command line
sigh --username "me#example.com" --app_identifier "com.example"
To do the same from your Fastfile
sigh(username: "me#example.com", app_identifier: "com.example")

Answer 2

Turns out the reason was that I had some data in my Appfile that Fastlane didn't like. It didn't show proper error messaging, but I put one more variable that it didn't recognize and there for it failed.
One thing I learned about Fastlane is that it works well but sometimes errors are hard to debug. Make sure to read the documentation properly!