无法从邮递员导出收藏

我在从邮递员导出收藏时遇到问题。对于一份工作，我需要导出到集合（第一个有 182 个请求，第二个有 75 个请求），对于第一个导出没有问题，对于第二个，我尝试导出但它返回此响应：unable to export this entity, please open dev tools。所以我这样做了。

但我真的不知道我需要看什么来修复这个错误。

我正在使用 ubuntu 16.04 LTS 和 postman 7.2.0 我已经在另一台使用 Windows 10 版本的计算机上尝试过：1903

请帮我 ：）

谢谢你

在 ubuntu 上，devtools 返回这个：

Error while exporting an entity
Object {
      id: "f7380d3b-d44c-4331-bc66-35afce320496"
}
Object {
      type: "collection",
      inputVersion: "1.0.0",
      outputVersion: "2.1.0"
}
inputVersion: "1.0.0"
outputVersion: "2.1.0"
type:
      "collection"__proto__ :
       Objectconstructor: function Object()
      hasOwnProperty: function hasOwnProperty()
      isPrototypeOf: function isPrototypeOf()
      propertyIsEnumerable: function propertyIsEnumerable()
      toLocaleString: function toLocaleString()
      toString: function toString()
      valueOf: function valueOf()
      __defineGetter__: function __defineGetter__()
      __defineSetter__: function __defineSetter__()
      __lookupGetter__: function __lookupGetter__()
      __lookupSetter__: function __lookupSetter__()
      get __proto__: function __proto__()
      set __proto__: function __proto__()
      TypeError: Cannot read property 'dataMode' of null

at _sanitizeRequestBody (file:///snap/postman/85/usr/share/Postman/resources/app/js/vendor-shared.js:427886:14)
  at requests.(anonymous function).responses._.map.response (file:///snap/postman/85/usr/share/Postman/resources/app/js/vendor-shared.js:427961:11)
  at arrayMap (file:///snap/postman/85/usr/share/Postman/resources/app/js/vendor-shared.js:792:23)
  at Function.map (file:///snap/postman/85/usr/share/Postman/resources/app/js/vendor-shared.js:9707:14)
  at _transformToV1 (file:///snap/postman/85/usr/share/Postman/resources/app/js/vendor-shared.js:427959:33)
  at Object.transform (file:///snap/postman/85/usr/share/Postman/resources/app/js/vendor-shared.js:428014:18)
  at __webpack_exports__.a.Promise.resolve.then.then.then.then.then.then.sanitizedEntity (file:///snap/postman/85/usr/share/Postman/resources/app/js/vendor-shared.js:303105:24)
  at <anonymous>
(anonymous) @ vendor-shared.js:608126
__WEBPACK_IMPORTED_MODULE_1__modules_export_index__.a.exportSingle.then.then.then.then.then.catch.err @ postman-converters.js:8818