Communicate to user when upload is impossible due to no board selection

[per1234]

Describe the current behavior

On the first run of a fresh installation, no board is selected in the IDE. A "no board selected" condition might be produced in other ways (e.g., #657) after that time as well.

Compilation and upload commands are configured for each board. For this reason, compilation or upload is impossible if a board has not been selected.

🙁 The Arduino IDE does not provide any indication of what went wrong when an upload is attempted without a board selected.

To reproduce

1. Quit the IDE if it is running.
2. Rename or delete (:warning: cautiously) the following folder to simulate a first run:
   • Windows:

     C:\Users\<user name>\AppData\Roaming\arduino-ide
     

   • Linux:

     ~/.config/arduino-ide
     

   • macOS:

     ~/Library/Application Support/arduino-ide
     

3. Start the Arduino IDE.
4. Select a port from the Tools > Port menu in the Arduino IDE.
   🛈 This step is not required. It is only done to show that the issue is not dependent on a missing port selection (Uploading disabled without port selection #770)
5. Select Sketch > Upload from the Arduino IDE menus.

🙁 Nothing at all happens. There is no notification, error message, etc.

Describe the request

Clearly communicate to the user when uploading is not possible due to no board selection.

Even though it is not great (#62), there is at least some communication when compilation is attempted without a board selection.

Desktop

• OS: Windows 10
• Version: 2.0.0-rc4-snapshot.9b1f15d-snapshot-9b1f15d
  Date: 2022-02-17T10:40:50.003Z
  CLI Version: 0.21.0 [10107d24]

Additional context

This is likely only another symptom of the same issue that causes #770

I decided to create a separate issue report since there is a significantly different expected outcome between the two user paths (in #770 the upload should be successful, while here the issue is only that the failure is not communicated).

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Related

• Auto Format (Ctrl+T) fails silently if no board is selected #973

[ubidefeo]

@91volt
isn't this case handled by your latest UX explorations?