src/vs/workbench/services/userDataProfile/browser/userDataProfileManagement.ts/UserDataProfileManagementService/checkAndCreateExtensionsProfileResource
class UserDataProfileManagementService:	private async checkAndCreateExtensionsProfileResource(): Promise<URI> {
		if (this.userDataProfileService.currentProfile.extensionsResource) {
			return this.userDataProfileService.currentProfile.extensionsResource;
		}
		if (!this.userDataProfilesService.defaultProfile.extensionsResource) {
			// Extensions profile is not yet created for default profile, create it now
			return this.createDefaultExtensionsProfile(joinPath(this.userDataProfilesService.defaultProfile.location, EXTENSIONS_RESOURCE_NAME));
		}
		throw new Error('Invalid Profile');
	}