I have installed PlatformIO, C/C++, C/C++ Extention Pack, C/C++ Taemes extensions on both VSCode and Cursor on my previous computer. They are still being found in Marketplace. Cursor installed on my new laptop does not find PlatformIO, C/C++ extensions in Marketplace. (They are all found in VSCode …

I have the same issue. fresh install of macbook, on my other macbook it is still working (existing install). The about of the non functional: Version: 1.2.0 VSCode Version: 1.99.3 Commit: eb5fa4768da0747b79dc34f0b79ab20dbf582020 Date: 2025-07-01T19:49:10.821Z Electron: 34.5.1 Chromium: 132.0.…

Have the same issue on Windows with WSL.

I have the same issue on my Macs. Available on one Mac and not on the other one.

Here are two temporary fixes until Cursor be installed from the marketplace: Install from VSIX file Download and install VS Code (if you haven’t already) Launch VS Code and navigate to the extensions marketplace in the sidebar Search for what ever extension you need (in this case you will…

Thank you that’s really helpful! I was able to install the platformIO extension, but I couldn’t download the vsix for the C/C++ extension in VScode for some reason… The “downloading vsix” message was there for a few seconds and it just disappeared. the file isn’t in my folder either.

I was able to find the vsix on this page. Releases · microsoft/vscode-cpptools · GitHub but there is this error message when I installed it on Cursor: [image]

Oh that wasnt an error. I guess it’s just kinda a warning. I can use platformIO now, thanks! I had to close and reopen Cursor. Just make sure you do that if you’re having the same issue.

Hey everyone, can you please try this in Cursor? https://open-vsx.org/extension/DavidGomes/platformio-ide I have been able to get this to work on my local Cursor for any PlatformIO project. What I did was: Make this require the Clang CPP extension (so you should get a notification to install it …

I tried to use this extension (Platformio IDE for Cursor). Unfortunately, it doesn’t work! The process is stuck on “Initializing Core…” when I click on Platformio extension in the toolbar. No possibility to compile the existing project or create a new one. I tested both checked/unchecked options “U…

PlatformIO IDE extension is not found in the Marketplace

Support Bug Reports

davidgomes (David Gomes) August 28, 2025, 6:22pm 18

Yeah it’s already done: Deprecate `DavidGomes.platformio-ide-cursor` (#958) · EclipseFdn/publish-extensions@9e76db0 · GitHub.

2 Likes

Topic		Replies	Views
After installing the 'C/C++' extension from Anysphere, 'PlatformIO IDE' is not activated Bug Reports	22	2041	August 13, 2025
Coding Your ESP32 Firmware with Cursor (or VSCode) + PlatformIO Guides	27	7246	February 23, 2026
PlatformIO Extension Missing Bug Reports	9	605	September 9, 2025
I can't install any extensions via the Extension Marketplace Bug Reports	33	6923	April 8, 2025
Install the PlatformIO extension without Visual Studio Guides	0	269	December 25, 2025

PlatformIO IDE extension is not found in the Marketplace

Related topics