Navigate to the standard directory for Step 7 resources: C:\Program Files (x86)\Common Files\Siemens\S77LOG
The "Cannot find language resource file s7yomlr.dll" error is almost always a sign of a broken file path or an incomplete installation. In 90% of cases, running the function from the original installation media or the Windows Control Panel solves the problem without losing any project data. cannot find language resource file s7yomlr.dll
An interrupted update or a failed installation can leave out critical DLLs. Navigate to the standard directory for Step 7