Hi,
We have not seen this kind of error while compiling class files. Markers are created internally to tag information about resource. Mostly markers are created to tag information about problems. Can you please restart PDS OE and try cleaning complete project and let us know if still this file compile shows same error.
Also can you please see if there is any error logged in log file and share the log (<PDSOEWorkspace>\.metadata\.log) with us.
Thanks,
Swathi.