Category	FAQ
tosutil	tosutil FAQ
TOS Browser	TOS Browser FAQ
FSX	FSX FAQ
tosfsspec	tosfsspec FAQ
Others	Why do I receive an "InvalidPathAccess" error when using tools such as Boto3, S3cmd, or the S3 SDK to request TOS? When I install tosutil or TOS Browser on macOS, a prompt appears stating that the app is from an unidentified developer. What should I do?

Others

Why do I receive an "InvalidPathAccess" error when using tools such as Boto3, S3cmd, or the S3 SDK to request TOS?

TOS does not support path-style URL access. Only virtual-hosted–style URL access is supported. To enable virtual host-style URL access, you need to modify the tool's configuration. The difference between the two types of access is as follows:

Path-style URL: The bucket name appears in the path of the HTTP URL.

Virtual-hosted-style URL: The bucket name appears in the domain name of the HTTP URL.

# Path-style URL​
https://tos-s3-cn-beijing.volces.com/{bucketname}​
​
# Virtual-hosted-style URL​
https://{bucketname}.tos-s3-cn-beijing.volces.com​

When I install tosutil or TOS Browser on macOS, a prompt appears stating that the app is from an unidentified developer. What should I do?

Follow the steps below to resolve this issue:

On the macOS desktop, click System Settings.

In the left sidebar, click Privacy & Security.

In the Security section, select App Store and identified developers.

For the message "TOS Browser" cannot be opened because it is from an unidentified developer, click Open Anyway.

In the box that appears, click Open.

Last updated: 2026.06.22 15:21:16

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