我有一个测试项目。我错误地删除了jdl文件。现在，当我尝试使用从现有项目重新创建 jdl 文件时
jhipster export-jdl
我收到这条消息：
Using JHipster version installed locally in current project's node_modules
Executing jhipster:export-jdl
Options:
Parsing entities from .jhipster dir...
The passed validation must be valid.
Errors: No value
events.js:183
throw er; // Unhandled 'error' event
^
Error: ERROR!
Error while parsing entities to JDL
at Environment.error (/home/igor/Development/IdeaProjects/StoVehiclesManagementSystems/node_modules/generator-jhipster/node_modules/yeoman-environment/lib/environment.js:157:40)
at module.exports.error (/home/igor/Development/IdeaProjects/StoVehiclesManagementSystems/node_modules/generator-jhipster/generators/generator-base.js:2048:18)
at module.exports.generateJDLFromEntities (/home/igor/Development/IdeaProjects/StoVehiclesManagementSystems/node_modules/generator-jhipster/generators/generator-base-private.js:1002:18)
at module.exports.parseJson (/home/igor/Development/IdeaProjects/StoVehiclesManagementSystems/node_modules/generator-jhipster/generators/export-jdl/index.js:39:33)
at Object.<anonymous> (/home/igor/Development/IdeaProjects/StoVehiclesManagementSystems/node_modules/yeoman-generator/lib/index.js:418:27)
at /home/igor/Development/IdeaProjects/StoVehiclesManagementSystems/node_modules/run-async/index.js:25:25
at new Promise (<anonymous>)
at /home/igor/Development/IdeaProjects/StoVehiclesManagementSystems/node_modules/run-async/index.js:24:19
at self.env.runLoop.add.completed (/home/igor/Development/IdeaProjects/StoVehiclesManagementSystems/node_modules/yeoman-generator/lib/index.js:419:13)
at runCallback (timers.js:810:20)
知道可能是什么问题吗？