Autocomplete (Ctrl+Space) and Indexing Not Working

[wufl]

TL;DR: Right click your project in Project Explorer, click Properties > C/C++ General > Indexer > Enable Indexer if option is not checked.

 

Hi all,

I have seen other posts in the community about Autocomplete not working with their projects, with fixing the indexing being a possible solution that does not work for many. I have seen that some go to Window > Preferences > C/C++ > Editor > Content Assist > Advanced and enabled “Parsing-based Proposals”. For me, that did not work either, and I could not get any Autocomplete results for the HAL library or any imported APIs/libraries.

However, I finally found a possible culprit when Right-Clicking a HAL_Init( ) call within my code and clicking References > Workspace/Project. 

A window should pop up and may relay the message “unknown results: indexer is not enabled”).

Window is in top right.

The solution for this lies in right clicking your project in Project Explorer and clicking Properties > C/C++ General > Indexer > Enable Indexer if the option is not checked. Applying this resolved the issue for me.

 

I copied and pasted my project from another one I made and am not sure if it disabled this option in the process, but it was a sneaky one since the project still compiles, executes, and lets you rebuild the index when you need to. Should be something ST should check out.

[Ghofrane GSOURI]

Hello ​@wufl 

Thank you for sharing your workaround on the ST Community.
Could you please specify the IDE version in which this issue occurs as well as your operating system?

[Raymond Buck]

Checking Enable project specific settings did not work for my project. The project was generated as a cmake project with STMCubeMX2. I imported it into STM32CubeIDE as a cmake project. Some of the suggested proposals do show up. But none of the GPIO proposals are displayed. 

STM32CubeIDE version 2.1.1
STM32CubeMX2 versipn 1.0.1
 

I imported the same cmake project into Visual Studio Code V1.129.0 and all of the suggested proposals are displayed. That indicates there is a problem with STM32CubeIDE or with some setting that is incorrect. I am using VSCode for my project although I prefer the STM32CubeIDE development tool.