Examples fail to run second time with error: failed to load manifest for workspace member .assets_db

[eqkessel]

Description

Attempting to run an example fails with error failed to load manifest for workspace member.

Reproduction Steps

1. Clone repository into local folder with git clone https://github.com/amethyst/amethyst.git.
2. Run an example using cargo run -p hello_world as per the examples folder README. I tried examples hello_world, window, and sphere. This successfully compiles and runs.
3. Attempt to run an example again using cargo run -p window. I tried examples hello_world, window, sphere, and pong_tutorial_01.

What You Expected to Happen

The example compiles and runs.

What Actually Happened

Cargo fails to compile or run the example.

Screenshots and Logs

Upon running cargo run -p window (or any other example) in PowerShell:

error: failed to load manifest for workspace member `C:\Users\redne\Documents\Git\Amethyst\amethyst\examples\.assets_db`

Caused by:
  failed to read `C:\Users\redne\Documents\Git\Amethyst\amethyst\examples\.assets_db\Cargo.toml`

Caused by:
  The system cannot find the file specified. (os error 2)

.assets_db contains the following:

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d-----        10/16/2021     18:16                cache
-a----        10/16/2021     18:16          45056 data.mdb
-a----        10/16/2021     18:16           8128 lock.mdb

Cargo.toml is indeed missing. Deleting the .assets_db folder after each example run allows the example to run again.

Your Environment

Operating System: Windows 10
Operating System Version: 20H2, build 19042.1237
Version of Amethyst: Compiler listed amethyst_core v0.16.0 when building right after cloning.

Additional Context

I am just starting out in Rust and hoping to learn the language by practical example. While I am a noob at this language, I haven't done anything except clone this repo and run an example, so I doubt I have caused this issue.

I have run rustup update before all of this.

[dellwatson]

Do u clone it into submodule? your path is confused

Caused by:
  The system cannot find the file specified. (os error 2)

usually that above caused by path corruption, and it is shown from yours examples\.assets_db\Cargo.toml and there's no .assets_db

can you try cargo new hello_cargo into examples and try to run it? I think it won't be working in ur case. if yes then try to clone new and cargo build from root folder