SyntaxError when mkdir was used in Windows

[liwoe]

When running and the agent_folder was created using mkdir or the echo command in Windows: An error from module "_bootstrap" occures because it can't import the folder where the init file is (multi_tool_agent in my case)
(maybe _bootstrap issue and not adk so change of docs would be useful, especially as issue is in quickstart)

SyntaxError: source code string cannot contain null bytes

To Reproduce

1. Go to Quickstart and follow instruction and use mkdir in Windows / or create dir normally and use echo command from Quickstart
2. Run using any run method in Quickstart
3. When running with adk web write to the client / when using in terminal error occures directly
4. Then error occures

Expected behavior

Should run normally, also the error message is not very helpful either, users dont really know what the issue is

Screenshots

Versions

• OS: [Windows] (Windows only error)
• ADK version: latest
• Python version: 3.13.3

[Shifat7]

This is a common windows specific python issue. Files created with Windows commands (mkdir, echo) typically contain null bytes and/or incorrect encoding. My suggestion is don't use the commands instead create using IDE's with UTF-8 encoding already set or if already affected then open in them and change the encoding to UTF-8.

Made a PR to reflect this issue in the docs

[hangfei]

Thank you @Shifat7 . @liwoe please give it a try. Closing the issue now and feel free to re-open if you still experience any issues.