修复createConfig报错问题

build/script/buildConf.ts

@@ -2,7 +2,7 @@
  * Generate additional configuration files when used for packaging. The file can be configured with some global variables, so that it can be changed directly externally without repackaging
  */
 import { GLOB_CONFIG_FILE_NAME, OUTPUT_DIR } from '../constant';
-import fs, { writeFileSync } from 'fs-extra';
+import fs from 'fs-extra';
 import chalk from 'chalk';
 
 import { getRootPath, getEnvConfig } from '../utils';
@@ -28,7 +28,7 @@ Object.defineProperty(window, "${configName}", {
   writable: false,
 });`;
     fs.mkdirp(getRootPath(OUTPUT_DIR));
-    writeFileSync(getRootPath(`${OUTPUT_DIR}/${configFileName}`), configStr);
+    fs.writeFileSync(getRootPath(`${OUTPUT_DIR}/${configFileName}`), configStr);
 
     console.log(chalk.cyan(`✨ [${pkg.name}]`) + ` - configuration file is build successfully:`);
     console.log(chalk.gray(OUTPUT_DIR + '/' + chalk.green(configFileName)) + '\n');