Outline view says "The active editor cannot provide outline information."

[Mek7]

Describe the problem

Outline view says "The active editor cannot provide outline information."
It does not display any outline.

To reproduce

Open any sketch. For example:

/*

 * EEPROM Clear

 *

 * Sets all of the bytes of the EEPROM to 0.

 * Please see eeprom_iteration for a more in depth

 * look at how to traverse the EEPROM.

 *

 * This example code is in the public domain.

 */


#include <EEPROM.h>


void setup() {

  // initialize the LED pin as an output.

  pinMode(13, OUTPUT);

  

  /***

    Iterate through each byte of the EEPROM storage.

    Larger AVR processors have larger EEPROM sizes, E.g:

    - Arduino Duemilanove: 512 B EEPROM storage.

    - Arduino Uno:         1 kB EEPROM storage.

    - Arduino Mega:        4 kB EEPROM storage.

    Rather than hard-coding the length, you should use the pre-provided length function.

    This will make your code portable to all AVR processors.

  ***/


  for (int i = 0 ; i < EEPROM.length() ; i++) {

    EEPROM.write(i, 0);

  }


  // turn the LED on when we're done

  digitalWrite(13, HIGH);

}


void loop() {

  /** Empty loop. **/

}

Then press F1, write "Toggle outline view" and select it from the dropdown to open outline view. Observe it displays "The active editor cannot provide outline information."

Expected behavior

Show outline of the sketch - function list. Such as in the video in #237

Arduino IDE version

Version: 2.1.1-nightly-20230604 Date: 2023-06-04T03:16:46.254Z CLI Version: 0.32.2 Copyright © 2023 Arduino SA

Operating system

Windows

Operating system version

Win 10 Pro x64

Additional context

The sketch is for Arduino Nano with old bootloader.

Additional reports

• Outline view says "The active editor cannot provide outline information." #2087 (comment)

Issue checklist

• I searched for previous reports in the issue tracker
• I verified the problem still occurs when using the latest nightly build
• My report contains all necessary details

[francwalter]

Is there at least any trick to bring it back?
I remember on the early betas, there was always issues with that outline information (see 124), but often it was present.
There must be something to do about it, at worst a downgrade to 2.0.x?

[Mek7]

No, it's broken and considering it's a critical functionality, I'm suprised it's getting no attention.
I am still waiting for a version that fixes this, and am not aware of any workaround :(

[per1234]

Thanks for your report @Mek7. Please add a comment here to tell us which board you have selected from the Tools > Board menu in Arduino IDE when you experience this issue.

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[Mek7]

Hello, the board is Arduino Nano.
I launched Arduino IDE to check it out today, it asked me to update to version 2.2.1 and now I see the outline view is working already, so it looks like it was fixed in the meantime.

[NigelGuyLeeming]

If anyone else finds this post with the same problem, the outline may not appear until a board is selected in V2.3.3