When encountering the "Error: EIO: i/o error, mkdir" error message while trying to import Eagle material packages (.eaglepack), this is usually related to system hard drive format, read/write permissions, or software version. Here are three solutions to help you resolve this issue.

Solution 1: Confirm if the hard drive format is natively supported by the system

Operating systems use specific hard drive formats by default, such as NTFS for Windows and APFS and HFS+ for macOS. When the hard drive file system is inconsistent with the operating system's native format, it may cause files to be unable to read/write normally or slow down read/write speeds, resulting in import failures.

For detailed confirmation steps, please refer to: /support/article/how-to-determine-if-your-disk-format-is-natively-supported-by-your-operating-system

Solution 2: Check hard drive read/write permissions

Insufficient software permissions on the hard drive can cause multiple issues, including inability to import, download, and save data, or inability to read/write executable files on the hard drive, which affects normal software operation. This may be one of the reasons for material package import failure.

For detailed checking steps, please refer to: /support/article/how-to-check-disk-readwrite-permissions

Solution 3: Update the application to the latest version

We regularly release updates that include bug fixes and feature upgrades, and these updates may not notify all version users. After major version releases, there are usually minor updates containing fixes for known issues, which are displayed through sub-version numbers (Build versions). The latest version may have already resolved the import issue.

For detailed update steps, please refer to: /support/article/how-to-update-your-application-to-the-latest-version

How to resolve the error "Error: EIO: i/o error, mkdir" when importing material packages (.eaglepack) fails?