While frustrating, this error is typically a sign that the security measures are working, preventing the installation of potentially corrupted or outdated software. Why This Error Occurs
The error message is a common issue for users of PlayOnLinux and PlayOnMac . It signifies that a file downloaded by an installation script does not match the security hash (MD5 checksum) pre-defined in that script. error in pol_download_resource md5 sum mismatch (2 attempt)
The POL_Download_Resource function is designed to verify the integrity of every file it fetches. The "2 attempt" (or higher) note indicates that PlayOnLinux has already tried to redownload the file at least once but failed to get a matching hash. The most common causes include: Forums PlayOnMac Problem installing component wininet While frustrating, this error is typically a sign