error in the log

[wajmsu]

Hi,

I am working on a dataset an dit was going fine. Now, as I access my dataset with libname statement and recoding (which was previosuly going fine) I recevie the following error message in log

"A lock is not available for PE.MATCHEDATA_21.DATA". What does it mean?

Thanks

[Reeza]

Someone/something else is using th dataset and you can't access or overwrite it until they're finished. 

See some options in this previous thread

https://communities.sas.com/t5/SAS-Enterprise-Guide/Ways-to-overcome-the-ERROR-A-lock-is-not-availab...

[SASKiwi]

What SAS interface are you using? It is even possible to do this to yourself in EG by having the dataset open in the data viewer while also running a program/task on the same dataset.