If the configurations and hyper params still appear properly in the task there's no need to rerun the wizard. just make sure you're using the updated trains repo

Okay, I'll try that

Hi FriendlySquid61 I did all the changes you said

now I get this error in my Auto Scaler task
Warning! exception occurred: An error occurred (AuthFailure) when calling the RunInstances operation: AWS was not able to validate the provided access credentials Retry in 15 seconds

Now I remind you that using the same credentials exactly, the auto scaler task could launch instances before

and I'm using the same credentials

I doubled checked the credentials in the configurations, and they have full EC2 access

Hey WackyRabbit7 ,
Is this the only error you have there?
Can you verify the credentials in the task seem ok and that it didn't disappear as before?
Also, I understand that the Failed parsing task parameter ... warnings no longer appear, correct?

Yep, the warnings no longer appear

and when looking at the running task, I still see the credentials

I have them in two different places, once under Hyperparameters -> General

and also in the extra_vm_bash_script variables, I ahve them under export TRAINS_API_ACCESS_KEY and export TRAINS_API_SECRET_KEY

Those are different credentials.
You should have the aws info under:
cloud_credentials_key , cloud_credentials_secret and cloud_credentials_region
And the stuff added to the extra_vm_bash_script are the trains key and secret from your profile page in the UI.
I suggest you use the wizard again to run the task, this will make sure all the data is where it should be.

oops m ybad

I have them only in one place

the ones in the export are like you said

the trains ones

I ran the wizard liek a milion times

no need to do it again, I ahve all the settings in place, I'm sure it's not a settings thing

So just to correct myself and sum up, the credentials for AWS are only in the cloud_credentials_*

So what's our next move FriendlySquid61 ? O_O

Searching this error it seems it could be many things.
Either wrong credentials or a wrong region (different than the one for your key-pair).
It could also be that your computer clock is wrong (see example https://github.com/mitchellh/vagrant-aws/issues/372#issuecomment-87429450 ).
I suggest you search it online and see if it solves the issue, I think it requires some debugging on your end.

Actually I removed the key pair, as you said it wasn't a must in the newer versions

I'll try to put it again

can you tell me which API call exactly are you using for spinning up? I would like to debug and try to use boto3 myself in order to spin up an instance, so I can understand where the problem is coming from

Sure, we're using RunInstances , you can see the call itself https://github.com/allegroai/trains/blob/master/trains/automation/aws_auto_scaler.py#L163

Actually I removed the key pair, as you said it wasn't a must in the newer versions

It isn't a must, but if you are using one, it should be in the same region

I'll try to debug this and updat