Android – intent.putextra does not work

I need to pass information between two activities, but for some reason, the information will not be sent / received

Logcat won't give me any errors. The debugger clearly shows that some content (variabl: mextras) has been added in the intention, but it is difficult to accurately explain the added content. After that, it gives me "no source" and doesn't help me

But the first thing to do. Am I right so far?

send out:

Intent intent = new Intent ( this, TaskListActivity.class );
intent.putExtra ( ProjectManager.ID, mId.toString () );
startActivity ( intent );

Recieving：

Intent intent = getIntent ();
mId = UUID.fromString ( intent.getStringExtra ( ProjectManager.ID ) );

resolvent:

Add the following code after the intent:

Bundle extras = intent.getExtras();
String exampleString = extras.getString(ProjectManager.ID);