oraios/serena · error · SerenaClientError

This operation requires Serena JetBrains plugin version {'.'

Error message

This operation requires Serena JetBrains plugin version {'.'.join(map(str, version_parts))} or higher, but the installed version is {self._plugin_version}. Ask the user to update the plugin!

What it means

JetBrainsPluginClient._require_version_at_least guards features that need a minimum Serena JetBrains plugin version. If the installed plugin version is older, it raises SerenaClientError naming the required minimum and the installed version, directing the user to update the plugin.

Source

Thrown at src/serena/jetbrains/jetbrains_plugin_client.py:300

        :return: whether this client instance matches the given project path
        """
        if self.project_root is None:
            return False
        return self._paths_match(str(resolved_path), self.project_root)

    def is_version_at_least(self, *version_parts: int) -> bool:
        if self._plugin_version is None:
            return False
        return self._plugin_version.is_at_least(*version_parts)

    def _require_version_at_least(self, *version_parts: int) -> None:
        """
        Ensures that the plugin version is at least the given version and raises an error otherwise.

        :param version_parts: the minimum required version parts (major, minor, patch)
        """
        if not self.is_version_at_least(*version_parts):
            raise SerenaClientError(
                f"This operation requires Serena JetBrains plugin version "
                f"{'.'.join(map(str, version_parts))} or higher, but the installed version is "
                f"{self._plugin_version}. Ask the user to update the plugin!"
            )

    def _make_request(self, method: str, endpoint: str, data: Optional[dict] = None, pythonify: bool = True) -> dict[str, Any]:
        """
        :param method: the HTTP method to use ("GET" or "POST")
        :param endpoint: the endpoint to call (e.g., "/findSymbol")
        :param data: the data to send in the request body (for POST requests)
        :param pythonify: whether to recursively "pythonify" the response object, converting all keys to snake_case.
            This must not be enabled if *any* key contains variable data rather (and therefore isn't a well-defined DTO structure).
        :return: the response as a dictionary
        """
        url = f"{self._base_url}{endpoint}"

        response: Response | None = None
        try:

View on GitHub (pinned to 7fcbca7e62)

Solutions

Update the Serena plugin via IDE Settings > Plugins > Serena (or install the latest from the plugin marketplace)
Update the JetBrains IDE itself if it blocks the newer plugin
Downgrade/avoid the specific operation not supported by the installed plugin version

Defensive patterns

Strategy: try-catch

Validate before calling

# pre-check the plugin version before calling gated operations
if not client.is_version_at_least(2023, 2, 6):
    warn_user("Update the Serena JetBrains plugin for this operation")

Try / catch

try:
    client._require_version_at_least(2023, 2, 6)  # or call the gated op
except SerenaClientError as e:
    if "update the plugin" in str(e).lower():
        instruct_user_to_update_plugin()
    else:
        raise

Prevention

Check the plugin version with the client's version API before version-gated operations
Enable IDE plugin auto-updates
Keep the serena library and JetBrains plugin versions in sync
Avoid gated operations (move, safe_delete, inline_symbol) on old plugins

When it happens

Trigger: Calling any operation gated on a version minimum — find_symbol, move, get_supertypes, get_subtypes, safe_delete, inline_symbol — while the installed Serena JetBrains plugin is below the required version (e.g. needing >=2023.2.6 behaviors).

Common situations: IDE plugin auto-update disabled; IDE pinned to an old version that can't host a newer plugin; user upgraded the serena CLI/library but not the IDE plugin.

Related errors

AI-assisted analysis of oraios/serena@7fcbca7e62 (2026-08-29). Data as JSON: /api/errors/dd2618c8f5bc17e3. Report an issue: GitHub.