fix #201707 (#201722)

Author: sandy081

src/vs/workbench/contrib/extensions/browser/extensionsWorkbenchService.ts

@@ -1102,7 +1102,7 @@ export class ExtensionsWorkbenchService extends Disposable implements IExtension
 		if (isUninstalled) {
 			const canRemoveRunningExtension = runningExtension && this.extensionService.canRemoveExtension(runningExtension);
 			const isSameExtensionRunning = runningExtension && (!extension.server || extension.server === this.extensionManagementServerService.getExtensionManagementServer(toExtension(runningExtension)));
-			if (!canRemoveRunningExtension && isSameExtensionRunning) {
+			if (!canRemoveRunningExtension && isSameExtensionRunning && !runningExtension.isUnderDevelopment) {
 				return nls.localize('postUninstallTooltip', "Please reload Visual Studio Code to complete the uninstallation of this extension.");
 			}
 			return undefined;