!!install!! — Download_batchspec Client Error

The IAM role associated with the CodeBuild project may lack the s3:GetObject permission required to download the source artifact or the buildspec from its S3 bucket.

If your CodeBuild project is configured to run inside a VPC, it must have an outbound rule (egress) that allows traffic to the internet or to the specific AWS services (like S3) where your source is stored. download_batchspec client error

Most CLIENT_ERROR instances in CodeBuild are network-related. The IAM role associated with the CodeBuild project

The error usually stems from the build environment's inability to reach the source provider (e.g., GitHub , Bitbucket, S3) or a failure in the environment itself. The error usually stems from the build environment's

Ensure your subnets have a valid route to a NAT Gateway if they are private. If you are using S3 as a source, consider adding an S3 VPC Endpoint to keep traffic within the AWS network. 2. Audit IAM Permissions