Cannot create enum from region value!

[amruta_w]

Hello,

I have process and in form I have form field called testing for file upload. I'm trying to upload file to aws s3 storage by referring the documentation Content Storage | Alfresco Documentation . In my activiti-app.properties file i have added the following lines

# For development purposes, data folder is created inside the sources ./data folder
#contentstorage.fs.rootFolder=data/
#contentstorage.fs.createRoot=true
contentstorage.s3.accessKey=added my access key
contentstorage.s3.secretKey=added my secret key
contentstorage.s3.bucketName=testing-by-dev
contentstorage.s3.objectKeyPrefix=development

But after configuring I'm getting the following error 

"Cannot create enum from region value!"

Kindly anyone help me to resolve the issue.

Here I have attached my example app.

Thanks & Regards

Amruta W

[amruta_w]

I'm using alfresco 1.7 version and for my region, aws versions required are 1.11.x above and the http client needs to be updated from 4.3.5 to 4.4.5. I replaced these in my lib folder of activiti then it worked.