Desktop: Trying to fix issue with permission errors when installing a…

… plugin

packages/lib/services/plugins/PluginService.ts

@@ -584,7 +584,17 @@ export default class PluginService extends BaseService {
 		// from where it is now to check that it is valid and to retrieve
 		// the plugin ID.
 		const preloadedPlugin = await this.loadPluginFromPath(jplPath);
-		await this.deletePluginFiles(preloadedPlugin);
+		try {
+			await this.deletePluginFiles(preloadedPlugin);
+		} catch (error) {
+			// Deleting the plugin appears to occasionally fail on Windows (maybe because the files
+			// are still loaded?), and it prevents the plugin from being installed. Because of this
+			// we just ignore the error - it means that there will be unnecessary files in the cache
+			// directory, which is not a big issue.
+			//
+			// Ref: https://discourse.joplinapp.org/t/math-mode-plugin-no-longer-works-in-windows-v3-1-23/41853
+			logger.warn('Could not delete plugin temp directory:', error);
+		}
 
 		// On mobile, it's necessary to create the plugin directory before we can copy
 		// into it.