Why doesn't flurry appear in javascript when using flurry phonegap plugin?

Question

phonegap

Installed a fairly common plugin https://github.com/jfpsf/flurry-phonegap-plugin as in the manual, added the libraries to the Referenced Libruaries. The whole thing starts up, no errors are displayed when adding the plugin, the application does not crash.
But in the place where flurry.startSession("my_code") is called, the error is flurry is not defined. Tried to capitalize and window.plugins.flurry - all the same. Just startSession("my_code") , of course, doesn't work either.
How to fix it?
PS at window.plugins.flurry error adding plugin and error in java (class not found)