java - Unable to delete parse object from android app -

so saving username in parse installation in android this:

parseinstallation installation = parseinstallation.getcurrentinstallation();                     installation.put("user", username);                     installation.saveinbackground(); 

i make query username send pushes specific device. if want 'unlink' device receiving pushes, have delete row parse installation table username username stored in app.

i have tried pretty everything, , down this:

parseinstallation installation = parseinstallation.getcurrentinstallation();                 parseobject object = installation.getparseobject("user");                 object.deleteinbackground(); 

but alas, doesn't work. have tried installation.deleteinbackground() failed. how can remove parseobject or installation device can no longer receive pushes?

you cannot delete installation object client - can parse cloud code master key.

you can following:

parseinstallation installation = parseinstallation.getcurrentinstallation();                         installation.remove("user");                         installation.saveinbackground(); 

or if doesn't work try:

parseinstallation installation = parseinstallation.getcurrentinstallation();                     installation.put("user", "" or null);                     installation.saveinbackground();