Question

我决定建立自己的博客，并选择 EmaSuriano的gatsby-starter-mate 作为我的Gatsby Starter （对于Gatsby和Contentful，我绝对是新手！） < / p>

我按照说明进行了一切，设置了我的环境，设置了Contentful空间并登录到Contentful等。

当前，我正在使用 Ubuntu 18.04 和

$ gatsby --version
Gatsby CLI version: 2.10.10
Gatsby version: 2.19.45

$ contentful --version
1.2.14

以下所有内容均无问题

$ gatsby new mate-portfolio https://github.com/EmaSuriano/gatsby-starter-mate  
$ yarn setup

但是当我

$ yarn start

并输入 localhost：8000 我得到编译失败页面，其中包含大量错误。

我参考了此https://github.com/gatsbyjs/gatsby/issues/16455问题来解决我的问题，并尝试了可用的解决方案，例如

删除fragments.js文件中的代码

删除.cache文件夹

将虚拟图像添加到我的空间

我还安装了$ npm install --save gatsby-source-contentful。 $ yarn add gatsby和$ yarn global add contentful-cli也一样。

但是他们都不起作用。以下是我$ yarn start时在 localhost：8000 上显示的错误。
谁能帮我解决这个问题？非常感谢！

There was an error in your GraphQL query:

Unknown type "ContentfulFixed".

File: /blog/node_modules/gatsby-source-contentful/src/fragments.js

There was an error in your GraphQL query:

Unknown type "ContentfulFixed".

File: /blog/node_modules/gatsby-source-contentful/src/fragments.js

There was an error in your GraphQL query:

Unknown type "ContentfulFluid".

File: /blog/node_modules/gatsby-source-contentful/src/fragments.js

There was an error in your GraphQL query:

Unknown type "ContentfulFluid".

File: /blog/node_modules/gatsby-source-contentful/src/fragments.js

There was an error in your GraphQL query:

Unknown type "ContentfulResolutions".

File: /blog/node_modules/gatsby-source-contentful/src/fragments.js

There was an error in your GraphQL query:

Unknown type "ContentfulResolutions".

File: /blog/node_modules/gatsby-source-contentful/src/fragments.js

There was an error in your GraphQL query:

Unknown type "ContentfulResolutions".

File: /blog/node_modules/gatsby-source-contentful/src/fragments.js

There was an error in your GraphQL query:

Unknown type "ContentfulSizes".

File: /blog/node_modules/gatsby-source-contentful/src/fragments.js

There was an error in your GraphQL query:

Unknown type "ContentfulSizes".

File: /blog/node_modules/gatsby-source-contentful/src/fragments.js

There was an error in your GraphQL query:

Unknown type "ContentfulSizes".

File: /blog/node_modules/gatsby-source-contentful/src/fragments.js

There was an error in your GraphQL query:

Cannot query field "contentfulAbout" on type "Query".

If you don't expect "contentfulAbout" to exist on the type "Query" it is most likely a typo.
However, if you expect "contentfulAbout" to exist there are a couple of solutions to common problems:

- If you added a new data source and/or changed something inside gatsby-node.js/gatsby-config.js, please try a restart of your development server
- The field might be accessible in another subfield, please try your query in GraphiQL and use the GraphiQL explorer to see which fields you can query and what shape they have
- You want to optionally use your field "contentfulAbout" and right now it is not used anywhere. Therefore Gatsby can't infer the type and add it to the GraphQL schema. A quick fix is to add a least one entry with that field ("dummy content")

It is recommended to explicitly type your GraphQL schema if you want to use optional fields. This way you don't have to add the mentioned "dummy content". Visit our docs to learn how you can define the schema for "Query":
https://www.gatsbyjs.org/docs/schema-customization/#creating-type-definitions

File: /blog/src/components/Helmet.js

There was an error in your GraphQL query:

Cannot query field "contentfulAbout" on type "Query".

If you don't expect "contentfulAbout" to exist on the type "Query" it is most likely a typo.
However, if you expect "contentfulAbout" to exist there are a couple of solutions to common problems:

- If you added a new data source and/or changed something inside gatsby-node.js/gatsby-config.js, please try a restart of your development server
- The field might be accessible in another subfield, please try your query in GraphiQL and use the GraphiQL explorer to see which fields you can query and what shape they have
- You want to optionally use your field "contentfulAbout" and right now it is not used anywhere. Therefore Gatsby can't infer the type and add it to the GraphQL schema. A quick fix is to add a least one entry with that field ("dummy content")

It is recommended to explicitly type your GraphQL schema if you want to use optional fields. This way you don't have to add the mentioned "dummy content". Visit our docs to learn how you can define the schema for "Query":
https://www.gatsbyjs.org/docs/schema-customization/#creating-type-definitions

File: /blog/src/components/Footer.js

There was an error in your GraphQL query:

Cannot query field "contentfulAbout" on type "Query".

If you don't expect "contentfulAbout" to exist on the type "Query" it is most likely a typo.
However, if you expect "contentfulAbout" to exist there are a couple of solutions to common problems:

- If you added a new data source and/or changed something inside gatsby-node.js/gatsby-config.js, please try a restart of your development server
- The field might be accessible in another subfield, please try your query in GraphiQL and use the GraphiQL explorer to see which fields you can query and what shape they have
- You want to optionally use your field "contentfulAbout" and right now it is not used anywhere. Therefore Gatsby can't infer the type and add it to the GraphQL schema. A quick fix is to add a least one entry with that field ("dummy content")

It is recommended to explicitly type your GraphQL schema if you want to use optional fields. This way you don't have to add the mentioned "dummy content". Visit our docs to learn how you can define the schema for "Query":
https://www.gatsbyjs.org/docs/schema-customization/#creating-type-definitions

File: /blog/src/sections/Landing.js

There was an error in your GraphQL query:

Cannot query field "siteMetadata" on type "Site".

If you don't expect "siteMetadata" to exist on the type "Site" it is most likely a typo.
However, if you expect "siteMetadata" to exist there are a couple of solutions to common problems:

- If you added a new data source and/or changed something inside gatsby-node.js/gatsby-config.js, please try a restart of your development server
- The field might be accessible in another subfield, please try your query in GraphiQL and use the GraphiQL explorer to see which fields you can query and what shape they have
- You want to optionally use your field "siteMetadata" and right now it is not used anywhere. Therefore Gatsby can't infer the type and add it to the GraphQL schema. A quick fix is to add a least one entry with that field ("dummy content")

It is recommended to explicitly type your GraphQL schema if you want to use optional fields. This way you don't have to add the mentioned "dummy content". Visit our docs to learn how you can define the schema for "Site":
https://www.gatsbyjs.org/docs/schema-customization/#creating-type-definitions

File: /blog/src/sections/Landing.js

There was an error in your GraphQL query:

Cannot query field "contentfulAbout" on type "Query".

If you don't expect "contentfulAbout" to exist on the type "Query" it is most likely a typo.
However, if you expect "contentfulAbout" to exist there are a couple of solutions to common problems:

- If you added a new data source and/or changed something inside gatsby-node.js/gatsby-config.js, please try a restart of your development server
- The field might be accessible in another subfield, please try your query in GraphiQL and use the GraphiQL explorer to see which fields you can query and what shape they have
- You want to optionally use your field "contentfulAbout" and right now it is not used anywhere. Therefore Gatsby can't infer the type and add it to the GraphQL schema. A quick fix is to add a least one entry with that field ("dummy content")

It is recommended to explicitly type your GraphQL schema if you want to use optional fields. This way you don't have to add the mentioned "dummy content". Visit our docs to learn how you can define the schema for "Query":
https://www.gatsbyjs.org/docs/schema-customization/#creating-type-definitions

File: /blog/src/sections/Projects.js

There was an error in your GraphQL query:

Cannot query field "siteMetadata" on type "Site".

If you don't expect "siteMetadata" to exist on the type "Site" it is most likely a typo.
However, if you expect "siteMetadata" to exist there are a couple of solutions to common problems:

- If you added a new data source and/or changed something inside gatsby-node.js/gatsby-config.js, please try a restart of your development server
- The field might be accessible in another subfield, please try your query in GraphiQL and use the GraphiQL explorer to see which fields you can query and what shape they have
- You want to optionally use your field "siteMetadata" and right now it is not used anywhere. Therefore Gatsby can't infer the type and add it to the GraphQL schema. A quick fix is to add a least one entry with that field ("dummy content")

It is recommended to explicitly type your GraphQL schema if you want to use optional fields. This way you don't have to add the mentioned "dummy content". Visit our docs to learn how you can define the schema for "Site":
https://www.gatsbyjs.org/docs/schema-customization/#creating-type-definitions

File: /blog/src/sections/Writing.js

There was an error in your GraphQL query:

Cannot query field "allMediumPost" on type "Query".

If you don't expect "allMediumPost" to exist on the type "Query" it is most likely a typo.
However, if you expect "allMediumPost" to exist there are a couple of solutions to common problems:

- If you added a new data source and/or changed something inside gatsby-node.js/gatsby-config.js, please try a restart of your development server
- The field might be accessible in another subfield, please try your query in GraphiQL and use the GraphiQL explorer to see which fields you can query and what shape they have
- You want to optionally use your field "allMediumPost" and right now it is not used anywhere. Therefore Gatsby can't infer the type and add it to the GraphQL schema. A quick fix is to add a least one entry with that field ("dummy content")

It is recommended to explicitly type your GraphQL schema if you want to use optional fields. This way you don't have to add the mentioned "dummy content". Visit our docs to learn how you can define the schema for "Query":
https://www.gatsbyjs.org/docs/schema-customization/#creating-type-definitions

File: /blog/src/sections/Writing.js

There was an error in your GraphQL query:

Cannot query field "mediumUser" on type "Query".

If you don't expect "mediumUser" to exist on the type "Query" it is most likely a typo.
However, if you expect "mediumUser" to exist there are a couple of solutions to common problems:

- If you added a new data source and/or changed something inside gatsby-node.js/gatsby-config.js, please try a restart of your development server
- The field might be accessible in another subfield, please try your query in GraphiQL and use the GraphiQL explorer to see which fields you can query and what shape they have
- You want to optionally use your field "mediumUser" and right now it is not used anywhere. Therefore Gatsby can't infer the type and add it to the GraphQL schema. A quick fix is to add a least one entry with that field ("dummy content")

It is recommended to explicitly type your GraphQL schema if you want to use optional fields. This way you don't have to add the mentioned "dummy content". Visit our docs to learn how you can define the schema for "Query":
https://www.gatsbyjs.org/docs/schema-customization/#creating-type-definitions

File: /blog/src/sections/Writing.js

There was an error in your GraphQL query:

Cannot query field "contentfulAbout" on type "Query".

If you don't expect "contentfulAbout" to exist on the type "Query" it is most likely a typo.
However, if you expect "contentfulAbout" to exist there are a couple of solutions to common problems:

- If you added a new data source and/or changed something inside gatsby-node.js/gatsby-config.js, please try a restart of your development server
- The field might be accessible in another subfield, please try your query in GraphiQL and use the GraphiQL explorer to see which fields you can query and what shape they have
- You want to optionally use your field "contentfulAbout" and right now it is not used anywhere. Therefore Gatsby can't infer the type and add it to the GraphQL schema. A quick fix is to add a least one entry with that field ("dummy content")

It is recommended to explicitly type your GraphQL schema if you want to use optional fields. This way you don't have to add the mentioned "dummy content". Visit our docs to learn how you can define the schema for "Query":
https://www.gatsbyjs.org/docs/schema-customization/#creating-type-definitions

File: /blog/src/sections/About.js

Answer 1

这是一个未解决的问题，如here所述。尝试添加任何图像并将其发布到媒体资产可能会解决该问题。也尝试运行

gatsby clean

开始纱头之前

Answer 2

我是该软件包的维护者。我正在研究不同版本的依赖项，以检查它们如何协同工作，然后发现颠覆gatsby版本实际上是破坏项目的原因。

请检查您的"gatsby": "2.15.22",，package.json和yarn.lock中使用的是node_modules版本。

希望有帮助！

Answer 3

确保每个内容类型都有一个连续的条目。包括资产。中似乎有很多人的问题。

Gatsby Contentful-GraphQL查询错误：未知类型“ ContentfulFixed”

3 个答案: