gatsby-source-contentful not working

[YuyingWu]

node: v6.10.2
npm: 3.10.10
gatsby: ^1.1.0
gatsby-source-contentful: 1.3.0

When I add gatsby-source-contentful to gatsby-config.js and I run gatsby develop, an error is thrown. Then I delete gatsby-source-contentful from gatsby-config.js, everything is all good again.

Please help me find out what's going on, thanks.

success open and validate gatsby-config.js — 0.008 s

One or more of your plugins have changed since the last time you ran Gatsby. As
a precaution, we're deleting your site's cache to ensure there's not any stale
data

success copy gatsby files — 0.045 s
⠄ source and transform nodesStarting to fetch data from Contentful
Fetching default locale
⠠ source and transform nodesdefault local is : zh-CN
⠠ source and transform nodescontentTypes fetched 3
Updated entries  6
Deleted entries  0
Updated assets  6
Deleted assets  0
Fetch Contentful data: 5283.946ms
⠐ source and transform nodes/Users/wyy/Documents/code/gatsby-blog/node_modules/_bluebird@3.5.0@bluebird/js/release/async.js:61
        fn = function () { throw arg; };
                           ^

TypeError: Path must be a string. Received undefined
    at assertPath (path.js:7:11)
    at Object.parse (path.js:1494:5)
    at Object.exports.onCreateNode (/Users/wyy/Documents/code/gatsby-blog/gatsby-node.js:10:33)
    at runAPI (/Users/wyy/Documents/code/gatsby-blog/node_modules/_gatsby@1.3.2@gatsby/dist/utils/api-runner-node.js:105:36)
    at /Users/wyy/Documents/code/gatsby-blog/node_modules/_gatsby@1.3.2@gatsby/dist/utils/api-runner-node.js:179:33
    at /Users/wyy/Documents/code/gatsby-blog/node_modules/_async@2.5.0@async/internal/map.js:27:9
    at replenish (/Users/wyy/Documents/code/gatsby-blog/node_modules/_async@2.5.0@async/internal/eachOfLimit.js:64:17)
    at iterateeCallback (/Users/wyy/Documents/code/gatsby-blog/node_modules/_async@2.5.0@async/internal/eachOfLimit.js:49:17)
    at /Users/wyy/Documents/code/gatsby-blog/node_modules/_async@2.5.0@async/internal/onlyOnce.js:12:16
    at /Users/wyy/Documents/code/gatsby-blog/node_modules/_async@2.5.0@async/internal/map.js:29:13
    at tryCatcher (/Users/wyy/Documents/code/gatsby-blog/node_modules/_bluebird@3.5.0@bluebird/js/release/util.js:16:23)
    at Promise.successAdapter (/Users/wyy/Documents/code/gatsby-blog/node_modules/_bluebird@3.5.0@bluebird/js/release/nodeify.js:23:30)
    at Promise._settlePromise (/Users/wyy/Documents/code/gatsby-blog/node_modules/_bluebird@3.5.0@bluebird/js/release/promise.js:566:21)
    at Promise._settlePromiseCtx (/Users/wyy/Documents/code/gatsby-blog/node_modules/_bluebird@3.5.0@bluebird/js/release/promise.js:606:10)
    at Async._drainQueue (/Users/wyy/Documents/code/gatsby-blog/node_modules/_bluebird@3.5.0@bluebird/js/release/async.js:138:12)
    at Async._drainQueues (/Users/wyy/Documents/code/gatsby-blog/node_modules/_bluebird@3.5.0@bluebird/js/release/async.js:143:10)

npm ERR! Darwin 16.6.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "run" "serve"
npm ERR! node v6.10.2
npm ERR! npm  v3.10.10
npm ERR! code ELIFECYCLE
npm ERR! gatsby-starter-advanced@1.0.0 serve: `gatsby develop`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the gatsby-starter-advanced@1.0.0 serve script 'gatsby develop'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the gatsby-starter-advanced package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     gatsby develop
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs gatsby-starter-advanced
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls gatsby-starter-advanced
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /Users/wyy/Documents/code/gatsby-blog/npm-debug.log

[KyleAMathews]

Could you try the contentful example site? https://github.com/gatsbyjs/gatsby/tree/master/examples/using-contentful

[cpinnix]

I got a similar error tonight. Went ahead and pulled down the example site.

git clone https://github.com/gatsbyjs/gatsby.git
cd gatsby/examples/using-contentful
yarn install
yarn build

And received this error.

success open and validate gatsby-config.js — 0.006 s
success copy gatsby files — 0.017 s
⠁ Starting to fetch data from Contentful
Fetching default locale
⠂ source and transform nodesdefault local is : en-US
⡀ source and transform nodescontentTypes fetched 3
Updated entries  9
Deleted entries  0
Updated assets  11
Deleted assets  0
Fetch Contentful data: 235.936ms
success source and transform nodes — 0.330 s
success building schema — 0.164 s
success createPages — 0.027 s
success createPagesStatefully — 0.022 s
success extract queries from components — 0.108 s
success run graphql queries — 0.209 s
success write out page data — 0.003 s
success update schema — 0.131 s

bootstrap finished, time since started: 1.978 s

Generating CSS
fs.js:1053
  return binding.unlink(pathModule._makeLong(path));
                 ^

Error: ENOENT: no such file or directory, unlink '/Users/xyz/git/gatsby/examples/using-contentful/public/bundle-for-css.js'
    at Object.fs.unlinkSync (fs.js:1053:18)
    at /Users/xyz/git/gatsby/examples/using-contentful/node_modules/gatsby/dist/utils/build-css.js:49:35
    at Compiler.<anonymous> (/Users/xyz/git/gatsby/examples/using-contentful/node_modules/webpack/lib/Compiler.js:194:14)
    at Compiler.emitRecords (/Users/xyz/git/gatsby/examples/using-contentful/node_modules/webpack/lib/Compiler.js:282:37)
    at Compiler.<anonymous> (/Users/xyz/git/gatsby/examples/using-contentful/node_modules/webpack/lib/Compiler.js:187:11)
    at /Users/xyz/git/gatsby/examples/using-contentful/node_modules/webpack/lib/Compiler.js:275:11
    at Compiler.applyPluginsAsync (/Users/xyz/git/gatsby/examples/using-contentful/node_modules/tapable/lib/Tapable.js:60:69)
    at Compiler.afterEmit (/Users/xyz/git/gatsby/examples/using-contentful/node_modules/webpack/lib/Compiler.js:272:8)
    at Compiler.<anonymous> (/Users/xyz/git/gatsby/examples/using-contentful/node_modules/webpack/lib/Compiler.js:267:14)
    at /Users/xyz/git/gatsby/examples/using-contentful/node_modules/async/lib/async.js:52:16
    at Object.async.forEachOf.async.eachOf (/Users/xyz/git/gatsby/examples/using-contentful/node_modules/async/lib/async.js:236:30)
    at Object.async.forEach.async.each (/Users/xyz/git/gatsby/examples/using-contentful/node_modules/async/lib/async.js:209:22)
    at Compiler.emitFiles (/Users/xyz/git/gatsby/examples/using-contentful/node_modules/webpack/lib/Compiler.js:235:20)
    at /Users/xyz/git/gatsby/examples/using-contentful/node_modules/mkdirp/index.js:48:26
    at FSReqWrap.oncomplete (fs.js:153:5)
error Command failed with exit code 1.

[3CordGuy]

I'm also experiencing the same issue just adding the plugin for contentful as @YuyingWu. Really would like to get this data layer working.

Fetch Contentful data: 728.460ms
⢀ source and transform nodes/Users/xxxx/node_modules/bluebird/js/release/async.js:61
        fn = function () { throw arg; };
                           ^

TypeError: Path must be a string. Received undefined
    at assertPath (path.js:7:11)
    at Object.parse (path.js:1494:5) 
...

[KyleAMathews]

Try using Yarn.

npm install -g yarn@latest
rm -r node_modules
yarn
gatsby develop

I just reinstalled the contentful example site and it worked as expected.

[sandy1987]

success delete html files from previous builds — 0.018 s
success open and validate gatsby-config.js — 0.005 s
info One or more of your plugins have changed since the last time you ran Gatsby. As
a precaution, we're deleting your site's cache to ensure there's not any stale
data
success copy gatsby files — 0.018 s
⠁ Starting to fetch data from Contentful
Fetching default locale
⠈ source and transform nodesdefault local is : en-GB
⠂ source and transform nodescontentTypes fetched 1
Updated entries 2
Deleted entries 0
Updated assets 1
Deleted assets 0
Fetch Contentful data: 3433.285ms
success source and transform nodes — 3.467 s
success building schema — 0.129 s
success createLayouts — 0.039 s
⠁ createPages

problem occur while createPages. It doesn't give any type of error. but still stay on there. . .. Any idea? Please suggest

[KyleAMathews]

The error is in your code. Add some console.log in your gatsby-node's createPages function