No valid sound devices connected

Uploaded January 2018 | Updated September 2026, 2 weeks ago

How to fix No valid sound devices connected on PC / Laptop
I got this error message after installing attack on titans on my Laptop.

No valid sound devices connected - FIXED

$Android Tutorial #5 - Toolbar - Action-bar - Menu Toolbar or Action-bar or Menu, is quite useful feature you have to take benefit from it, by creating action or menu items to do some action in your app, or you can use it for navigation and for displaying logo or your app brand. so, in this video youll learn about toolbar... and at the end of this video youll face a small issue in updating the parent activity, Ive already explained that in this tutorial: https://youtu.be/geql_wwXIhw but, if you cant solve it here is the solution: ListOfUsers.java: @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()){ case R.id.new_user: Intent intent = new Intent(this, NewUser.class); startActivityForResult(intent,2); return true; default: return super.onOptionsItemSelected(item); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if(resultCode RESULT_OK){ if(requestCode 1){ if(data!=null){ //mUsersAdapter.notifyDataSetChanged(); String action = data.getStringExtra(action); if(action.equals(update)){ mUsersAdapter.notifyItemChanged(mPosition); }else if(action.equals(delete)){ mUsersAdapter.notifyItemRemoved(mPosition); } } }else if(requestCode 2){ mUsersAdapter.notifyItemInserted(mUsers.size()); } } } NewUser.java: mAdd_btn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { setResult(RESULT_OK,null); User user = new User(); user.setFirstname(mFirstname_editTxt.getText().toString()); user.setEmail(mEmail_editTxt.getText().toString()); UsersBase.get().newUser(user); Toast.makeText(NewUser.this,New user has been added to the list, Toast.LENGTH_LONG).show(); mFirstname_editTxt.setText(); mEmail_editTxt.setText(); } });$

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