Closed bug report

Antigravity extension install fails with an error; VS Code extension search not working (from aiflow#182)

John Lauer · ·closed by Colby Knox

Moved here from adom/adom-aiflow#182, which Skyler filed through the feedback field on the AI Flow page (field "Installs") on 2026-11-09:

Installing the antigravity extension failed giving an error message. The search function for VScode extensions also seems to be broken.

Not known yet: the error text, the Hydrogen version and whether it was local (ah) or cloud (hc), and whether the install came from the dock dashboard, adom-antigravity, or the editor's Extensions view. The extension search lives in Hydrogen's editor, so that half may belong to adom/hydrogen. I asked Skyler for the error text on #182.

5 Replies

Colby Knox marked this in progress ·
Colby Knox · ·edited

@skyler.rosenberg thanks for reporting this, we found the cause. This is a Hydrogen bug, not an Antigravity one. Hydrogen passes the editor's extension store traffic through itself, and it handed the store's compressed replies back to the editor without saying they were compressed. The editor then can't read them, which shows up as "Unexpected token ... is not valid JSON". That is why both installing and searching for extensions failed.

The fix is coming in the next Hydrogen update. Until then, you can install an extension from a terminal in Hydrogen with:

env -u EXTENSIONS_GALLERY code-server --install-extension Google.google-antigravity

(swap in any other extension's ID). Search in the Extensions view works again once the update is in.

This comment was deleted by its author ·
Colby Knox ·

@skyler.rosenberg the fix is out: Hydrogen 1.0.717 is the public version now. Once it updates (or after you restart Hydrogen), installing Antigravity and searching in the Extensions view work again, with no workaround needed. Thanks for reporting it!

Colby Knox closed this ·
Skyler ·

Great! I got it to work thanks for the fast turn around. The button via the Adom/Antigravity page under the EDA tools pull out didn't work, but going into the VS code window and searching for the extension from there worked :)

Colby Knox ·

@skyler.rosenberg Glad it works now. That Install button runs the same install as the Extensions view, so it hit the same bug. I just tested the button on the current version and it installs Antigravity again. If it still fails for you, let me know what message it shows.

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