Vue工程报错解决方案Warn:import Vue from "vue";

 INFO  Starting development server...
Starting type checking and linting service...
Using 1 worker with 2048MB memory limit
98% after emitting CopyPlugin

 DONE  Compiled successfully in 7753ms                                  21:03:53
WARNING in D:/GitHub Project/pay/src/App.vue(8,32):
8:32 " should be '
     6 | 
     7 | <script lang="ts">
  >  8 | import { Component, Vue } from "vue-property-decorator";
       |                                ^
     9 | import AllCourse from "./views/all_course/index.vue";
    10 | 
    11 | @Component({
WARNING in D:/GitHub Project/pay/src/App.vue(9,23):
9:23 " should be '
     7 | <script lang="ts">
     8 | import { Component, Vue } from "vue-property-decorator";
  >  9 | import AllCourse from "./views/all_course/index.vue";
       |                       ^
    10 | 
    11 | @Component({
    12 |   components: {
WARNING in D:/GitHub Project/pay/src/App.vue(13,14):
13:14 Missing trailing comma
    11 | @Component({
    12 |   components: {
  > 13 |     AllCourse
       |              ^
    14 |   }
    15 | })
    16 | export default class App extends Vue {}
WARNING in D:/GitHub Project/pay/src/App.vue(14,4):
14:4 Missing trailing comma
    12 |   components: {
    13 |     AllCourse
  > 14 |   }
       |    ^
    15 | })
    16 | export default class App extends Vue {}
    17 | </script>
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_block.vue(24,17):
24:17 " should be '
    22 | 
    23 | <script lang="ts">
  > 24 | import Vue from "vue";
       |                 ^
    25 | import { Component, Vue } from "vue-property-decorator";
    26 | 
    27 | @Component
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_block.vue(25,32):
25:32 " should be '
    23 | <script lang="ts">
    24 | import Vue from "vue";
  > 25 | import { Component, Vue } from "vue-property-decorator";
       |                                ^
    26 | 
    27 | @Component
    28 | export default class CourseBlock extends Vue {}
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(39,17):
39:17 " should be '
    37 | 
    38 | <script lang="ts">
  > 39 | import Vue from "vue";
       |                 ^
    40 | import { Component, Vue } from "vue-property-decorator";
    41 | 
    42 | import CourseBlock from "./course_block.vue";
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(40,32):
40:32 " should be '
    38 | <script lang="ts">
    39 | import Vue from "vue";
  > 40 | import { Component, Vue } from "vue-property-decorator";
       |                                ^
    41 | 
    42 | import CourseBlock from "./course_block.vue";
    43 | 
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(42,25):
42:25 " should be '
    40 | import { Component, Vue } from "vue-property-decorator";
    41 | 
  > 42 | import CourseBlock from "./course_block.vue";
       |                         ^
    43 | 
    44 | @Component({
    45 |   components: {
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(46,16):
46:16 Missing trailing comma
    44 | @Component({
    45 |   components: {
  > 46 |     CourseBlock
       |                ^
    47 |   }
    48 | })
    49 | export default class CourseList extends Vue {
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(47,4):
47:4 Missing trailing comma
    45 |   components: {
    46 |     CourseBlock
  > 47 |   }
       |    ^
    48 | })
    49 | export default class CourseList extends Vue {
    50 |   data() {
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(50,3):
50:3 The class method 'data' must be marked either 'private', 'public', or 'protected'
    48 | })
    49 | export default class CourseList extends Vue {
  > 50 |   data() {
       |   ^
    51 |     return [
    52 |       {
    53 |         bg: "dasdas",
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(53,13):
53:13 " should be '
    51 |     return [
    52 |       {
  > 53 |         bg: "dasdas",
       |             ^
    54 |         title: "Java语言入门",
    55 |         author: "jiaoge",
    56 |         degree: 3
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(54,16):
54:16 " should be '
    52 |       {
    53 |         bg: "dasdas",
  > 54 |         title: "Java语言入门",
       |                ^
    55 |         author: "jiaoge",
    56 |         degree: 3
    57 |       },
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(55,17):
55:17 " should be '
    53 |         bg: "dasdas",
    54 |         title: "Java语言入门",
  > 55 |         author: "jiaoge",
       |                 ^
    56 |         degree: 3
    57 |       },
    58 |       {
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(56,18):
56:18 Missing trailing comma
    54 |         title: "Java语言入门",
    55 |         author: "jiaoge",
  > 56 |         degree: 3
       |                  ^
    57 |       },
    58 |       {
    59 |         bg: "dasdas",
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(59,13):
59:13 " should be '
    57 |       },
    58 |       {
  > 59 |         bg: "dasdas",
       |             ^
    60 |         title: "Java语言入门",
    61 |         author: "jiaoge",
    62 |         degree: 3
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(60,16):
60:16 " should be '
    58 |       {
    59 |         bg: "dasdas",
  > 60 |         title: "Java语言入门",
       |                ^
    61 |         author: "jiaoge",
    62 |         degree: 3
    63 |       },
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(61,17):
61:17 " should be '
    59 |         bg: "dasdas",
    60 |         title: "Java语言入门",
  > 61 |         author: "jiaoge",
       |                 ^
    62 |         degree: 3
    63 |       },
    64 |       {
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(62,18):
62:18 Missing trailing comma
    60 |         title: "Java语言入门",
    61 |         author: "jiaoge",
  > 62 |         degree: 3
       |                  ^
    63 |       },
    64 |       {
    65 |         bg: "dasdas",
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(65,13):
65:13 " should be '
    63 |       },
    64 |       {
  > 65 |         bg: "dasdas",
       |             ^
    66 |         title: "Java语言入门",
    67 |         author: "jiaoge",
    68 |         degree: 3
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(66,16):
66:16 " should be '
    64 |       {
    65 |         bg: "dasdas",
  > 66 |         title: "Java语言入门",
       |                ^
    67 |         author: "jiaoge",
    68 |         degree: 3
    69 |       },
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(67,17):
67:17 " should be '
    65 |         bg: "dasdas",
    66 |         title: "Java语言入门",
  > 67 |         author: "jiaoge",
       |                 ^
    68 |         degree: 3
    69 |       },
    70 |       {
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(68,18):
68:18 Missing trailing comma
    66 |         title: "Java语言入门",
    67 |         author: "jiaoge",
  > 68 |         degree: 3
       |                  ^
    69 |       },
    70 |       {
    71 |         bg: "dasdas",
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(71,13):
71:13 " should be '
    69 |       },
    70 |       {
  > 71 |         bg: "dasdas",
       |             ^
    72 |         title: "Java语言入门",
    73 |         author: "jiaoge",
    74 |         degree: 3
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(72,16):
72:16 " should be '
    70 |       {
    71 |         bg: "dasdas",
  > 72 |         title: "Java语言入门",
       |                ^
    73 |         author: "jiaoge",
    74 |         degree: 3
    75 |       },
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(73,17):
73:17 " should be '
    71 |         bg: "dasdas",
    72 |         title: "Java语言入门",
  > 73 |         author: "jiaoge",
       |                 ^
    74 |         degree: 3
    75 |       },
    76 |       {
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(74,18):
74:18 Missing trailing comma
    72 |         title: "Java语言入门",
    73 |         author: "jiaoge",
  > 74 |         degree: 3
       |                  ^
    75 |       },
    76 |       {
    77 |         bg: "dasdas",
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(77,13):
77:13 " should be '
    75 |       },
    76 |       {
  > 77 |         bg: "dasdas",
       |             ^
    78 |         title: "Java语言入门",
    79 |         author: "jiaoge",
    80 |         degree: 3
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(78,16):
78:16 " should be '
    76 |       {
    77 |         bg: "dasdas",
  > 78 |         title: "Java语言入门",
       |                ^
    79 |         author: "jiaoge",
    80 |         degree: 3
    81 |       }
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(79,17):
79:17 " should be '
    77 |         bg: "dasdas",
    78 |         title: "Java语言入门",
  > 79 |         author: "jiaoge",
       |                 ^
    80 |         degree: 3
    81 |       }
    82 |     ];
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(80,18):
80:18 Missing trailing comma
    78 |         title: "Java语言入门",
    79 |         author: "jiaoge",
  > 80 |         degree: 3
       |                  ^
    81 |       }
    82 |     ];
    83 |   }
WARNING in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(81,8):
81:8 Missing trailing comma
    79 |         author: "jiaoge",
    80 |         degree: 3
  > 81 |       }
       |        ^
    82 |     ];
    83 |   }
    84 | }
WARNING in D:/GitHub Project/pay/src/views/all_course/components/header.vue(12,17):
12:17 " should be '
    10 | 
    11 | <script lang="ts">
  > 12 | import Vue from "vue";
       |                 ^
    13 | import { Component, Vue } from "vue-property-decorator";
    14 | 
    15 | @Component
WARNING in D:/GitHub Project/pay/src/views/all_course/components/header.vue(13,32):
13:32 " should be '
    11 | <script lang="ts">
    12 | import Vue from "vue";
  > 13 | import { Component, Vue } from "vue-property-decorator";
       |                                ^
    14 | 
    15 | @Component
    16 | export default class Header extends Vue {}
WARNING in D:/GitHub Project/pay/src/views/all_course/index.vue(11,17):
11:17 " should be '
     9 | 
    10 | <script lang="ts">
  > 11 | import Vue from "vue";
       |                 ^
    12 | import { Component, Vue } from "vue-property-decorator";
    13 | 
    14 | import Header from "./components/header.vue";
WARNING in D:/GitHub Project/pay/src/views/all_course/index.vue(12,32):
12:32 " should be '
    10 | <script lang="ts">
    11 | import Vue from "vue";
  > 12 | import { Component, Vue } from "vue-property-decorator";
       |                                ^
    13 | 
    14 | import Header from "./components/header.vue";
    15 | import CourseList from "./components/course_list.vue";
WARNING in D:/GitHub Project/pay/src/views/all_course/index.vue(14,20):
14:20 " should be '
    12 | import { Component, Vue } from "vue-property-decorator";
    13 | 
  > 14 | import Header from "./components/header.vue";
       |                    ^
    15 | import CourseList from "./components/course_list.vue";
    16 | 
    17 | @Component({
WARNING in D:/GitHub Project/pay/src/views/all_course/index.vue(15,24):
15:24 " should be '
    13 | 
    14 | import Header from "./components/header.vue";
  > 15 | import CourseList from "./components/course_list.vue";
       |                        ^
    16 | 
    17 | @Component({
    18 |   components: {
WARNING in D:/GitHub Project/pay/src/views/all_course/index.vue(20,15):
20:15 Missing trailing comma
    18 |   components: {
    19 |     Header,
  > 20 |     CourseList
       |               ^
    21 |   }
    22 | })
    23 | export default class AllCourse extends Vue {}
WARNING in D:/GitHub Project/pay/src/views/all_course/index.vue(21,4):
21:4 Missing trailing comma
    19 |     Header,
    20 |     CourseList
  > 21 |   }
       |    ^
    22 | })
    23 | export default class AllCourse extends Vue {}
    24 | </script>
WARNING in D:/GitHub Project/pay/src/views/Home.vue(10,53):
10:53 Missing semicolon
     8 | <script>
     9 | // @ is an alias to /src
  > 10 | import HelloWorld from '@/components/HelloWorld.vue'
       |                                                     ^
    11 | 
    12 | export default {
    13 |   name: 'home',
WARNING in D:/GitHub Project/pay/src/views/Home.vue(15,15):
15:15 Missing trailing comma
    13 |   name: 'home',
    14 |   components: {
  > 15 |     HelloWorld
       |               ^
    16 |   }
    17 | }
    18 | </script>
WARNING in D:/GitHub Project/pay/src/views/Home.vue(16,4):
16:4 Missing trailing comma
    14 |   components: {
    15 |     HelloWorld
  > 16 |   }
       |    ^
    17 | }
    18 | </script>
    19 | 
WARNING in D:/GitHub Project/pay/src/views/Home.vue(17,2):
17:2 Missing semicolon
    15 |     HelloWorld
    16 |   }
  > 17 | }
       |  ^
    18 | </script>
    19 | 
ERROR in D:/GitHub Project/pay/src/views/all_course/components/course_block.vue(24,8):
24:8 Duplicate identifier 'Vue'.
    22 | 
    23 | <script lang="ts">
  > 24 | import Vue from "vue";
       |        ^
    25 | import { Component, Vue } from "vue-property-decorator";
    26 | 
    27 | @Component
ERROR in D:/GitHub Project/pay/src/views/all_course/components/course_block.vue(25,21):
25:21 Duplicate identifier 'Vue'.
    23 | <script lang="ts">
    24 | import Vue from "vue";
  > 25 | import { Component, Vue } from "vue-property-decorator";
       |                     ^
    26 | 
    27 | @Component
    28 | export default class CourseBlock extends Vue {}
ERROR in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(39,8):
39:8 Duplicate identifier 'Vue'.
    37 | 
    38 | <script lang="ts">
  > 39 | import Vue from "vue";
       |        ^
    40 | import { Component, Vue } from "vue-property-decorator";
    41 | 
    42 | import CourseBlock from "./course_block.vue";
ERROR in D:/GitHub Project/pay/src/views/all_course/components/course_list.vue(40,21):
40:21 Duplicate identifier 'Vue'.
    38 | <script lang="ts">
    39 | import Vue from "vue";
  > 40 | import { Component, Vue } from "vue-property-decorator";
       |                     ^
    41 | 
    42 | import CourseBlock from "./course_block.vue";
    43 | 
ERROR in D:/GitHub Project/pay/src/views/all_course/components/header.vue(12,8):12:8 Duplicate identifier 'Vue'.
    10 | 
    11 | <script lang="ts">
  > 12 | import Vue from "vue";
       |        ^
    13 | import { Component, Vue } from "vue-property-decorator";
    14 | 
    15 | @Component
ERROR in D:/GitHub Project/pay/src/views/all_course/components/header.vue(13,21):
13:21 Duplicate identifier 'Vue'.
    11 | <script lang="ts">
    12 | import Vue from "vue";
  > 13 | import { Component, Vue } from "vue-property-decorator";
       |                     ^
    14 | 
    15 | @Component
    16 | export default class Header extends Vue {}
ERROR in D:/GitHub Project/pay/src/views/all_course/index.vue(11,8):
11:8 Duplicate identifier 'Vue'.
     9 | 
    10 | <script lang="ts">
  > 11 | import Vue from "vue";
       |        ^
    12 | import { Component, Vue } from "vue-property-decorator";
    13 | 
    14 | import Header from "./components/header.vue";
ERROR in D:/GitHub Project/pay/src/views/all_course/index.vue(12,21):
12:21 Duplicate identifier 'Vue'.
    10 | <script lang="ts">
    11 | import Vue from "vue";
  > 12 | import { Component, Vue } from "vue-property-decorator";
       |                     ^
    13 |
    14 | import Header from "./components/header.vue";
    15 | import CourseList from "./components/course_list.vue";
Version: typescript 3.5.3, tslint 5.20.1
Time: 4078ms

  App running at:
  - Local:   http://localhost:8080/
  - Network: http://192.168.31.12:8080/

 这种错误一般是重复导入Vue产生的错误

把impor Vue from“vue”删掉即可消掉这个Warn提示。

同理其他Eslint的提示都可以慢慢的改，最后全清掉