google app engine - The API package 'file' or call 'Create()' was not found -


i trying use blobstore api, have error:

com.google.api.server.spi.systemservice invokeservicemethod: exception occurred while calling backed method com.google.apphosting.api.apiproxy$callnotfoundexception: api package 'file' or call 'create()' not found. @ java.lang.thread.getstacktrace(thread.java:1589) @ com.google.apphosting.api.apiproxy.makesynccall(apiproxy.java:116) @ com.google.apphosting.api.apiproxy.makesynccall(apiproxy.java:65) @ com.google.appengine.api.files.fileserviceimpl.makesynccall(fileserviceimpl.java:590) @ com.google.appengine.api.files.fileserviceimpl.create(fileserviceimpl.java:512) @ com.google.appengine.api.files.fileserviceimpl.createnewblobfile(fileserviceimpl.java:111) @ com.listecourses.model.listemodelendpoint.insertlistemodel(listemodelendpoint.java:182) @ sun.reflect.nativemethodaccessorimpl.invoke0(native method) @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57) @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43) @ java.lang.reflect.method.invoke(method.java:45) @ com.google.api.server.spi.systemservice.invokeservicemethod(systemservice.java:359) @ com.google.api.server.spi.systemserviceservlet.execute(systemserviceservlet.java:113) @ com.google.api.server.spi.systemserviceservlet.dopost(systemserviceservlet.java:71) @ javax.servlet.http.httpservlet.service(httpservlet.java:637) @ javax.servlet.http.httpservlet.service(httpservlet.java:717) @ org.mortbay.jetty.servlet.servletholder.handle(servletholder.java:511) @ org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1166) @ org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1157) @ org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1157) @ org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1157) @ org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1157) @ org.mortbay.jetty.servlet.servlethandler.handle(servlethandler.java:388) @ org.mortbay.jetty.security.securityhandler.handle(securityhandler.java:216) @ org.mortbay.jetty.servlet.sessionhandler.handle(sessionhandler.java:182) @ org.mortbay.jetty.handler.contexthandler.handle(contexthandler.java:765) @ org.mortbay.jetty.webapp.webappcontext.handle(webappcontext.java:418) @ org.mortbay.jetty.handler.handlerwrapper.handle(handlerwrapper.java:152) @ org.mortbay.jetty.server.handle(server.java:326) @ org.mortbay.jetty.httpconnection.handlerequest(httpconnection.java:542) @ org.mortbay.jetty.httpconnection$requesthandler.headercomplete(httpconnection.java:923) @ org.mortbay.jetty.httpconnection.handle(httpconnection.java:404) @ com.google.tracing.tracecontext$tracecontextrunnable.runincontext(tracecontext.java:437) @ com.google.tracing.tracecontext$tracecontextrunnable$1.run(tracecontext.java:444) @ com.google.tracing.currentcontext.runincontext(currentcontext.java:230) @ com.google.tracing.tracecontext$abstracttracecontextcallback.runininheritedcontextnounref(tracecontext.java:308) @ com.google.tracing.tracecontext$abstracttracecontextcallback.runininheritedcontext(tracecontext.java:300) @ com.google.tracing.tracecontext$tracecontextrunnable.run(tracecontext.java:441) @ java.lang.thread.run(thread.java:745)

i using code:

@apimethod(name = "insertlistemodel", httpmethod = "post") public listemodel insertlistemodel(listemodel listemodel) {     entitymanager mgr = getentitymanager();     try {         if (containslistemodel(listemodel)) {             throw new entityexistsexception("object exists");         }             fileservice fileservice = fileservicefactory.getfileservice();         if(listemodel.getimage()!=null && !listemodel.getimage().equals(""))         {             byte[] data = listemodel.getimage();                 string mimetype = "image/png";              // save data google app engine blobstore               listemodel.setimage(null);             mgr.persist(listemodel);             appenginefile file;                 file = fileservice.createnewblobfile(mimetype,"lm_"+listemodel.getid());                 filewritechannel writechannel = fileservice.openwritechannel(file, true);                 writechannel.write(java.nio.bytebuffer.wrap(data));                 writechannel.closefinally();                  // blobkey data in google app engine blobstore                 blobkey blobkey = fileservice.getblobkey(file);                  // blobkey can example serving url images                  //  uploadoptions uploadoptions = uploadoptions.builder                 //          .withgooglestoragebucketname("photobucket11");                  // image serving url (in https:// format)                 string imageurl = imagesservicefactory.getimagesservice().getservingurl(servingurloptions.builder.withblobkey(blobkey).secureurl(true));                  //       imagesservice imagesservice = imagesservicefactory                 //               .getimagesservice();                 //      servingurloptions servingoptions = servingurloptions.builder                 //               .withblobkey(blobkey);                  //       string imageurl = imagesservice.getservingurl(servingoptions);                  if(listemodel.getidblobkey()!=null)                 {                     blobkey blobkeytmp= new blobkey(listemodel.getidblobkey());                     final appenginefile f = fileservice.getblobfile(blobkeytmp);                      if(f.isreadable())                     {                          if(f.hasfinalizedname())                         {                             fileservice.delete(f); // problematic line                         }                     }                  }                  listemodel.setavatar(imageurl);                 listemodel.setidblobkey(blobkey.getkeystring());         }                  mgr.persist(listemodel);             } catch (ioexception e) {                 // todo auto-generated catch block                 e.printstacktrace();               } {                 mgr.close();             }             return listemodel;         }

can me?

it appears files api deprecated in 2013, , disabled year. see: https://cloud.google.com/appengine/docs/deprecations/files_api


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