netlify / netlify-plugin-gatsby

When using the default gatsby-plugin-netlify and @netlify/plugin-gatsby using the instructions on the README, all Not Found Urls are being redirected to this weird page that seems to be trying to load a Netlify Function. The page returns a 502 status and shows

{"errorType":"Error","errorMessage":"ENOENT: no such file or directory, lstat '/var/task/.cache/data'","trace":["Error: ENOENT: no such file or directory, lstat '/var/task/.cache/data'","    at Object.lstatSync (fs.js:1119:3)","    at Object.lstatSync (/var/task/.netlify/functions-internal/__dsg/__dsg.js:466:38)","    at statFunc (/var/task/.netlify/functions-internal/__dsg/__dsg.js:1172:106)","    at getStatsSync (/var/task/.netlify/functions-internal/__dsg/__dsg.js:1173:23)","    at Object.checkPathsSync (/var/task/.netlify/functions-internal/__dsg/__dsg.js:1211:37)","    at copySync2 (/var/task/.netlify/functions-internal/__dsg/__dsg.js:1311:42)","    at prepareFilesystem (/var/task/.netlify/functions-internal/__dsg/__dsg.js:2929:32)","    at getHandler (/var/task/.netlify/functions-internal/__dsg/__dsg.js:2954:3)","    at Object.<anonymous> (/var/task/.netlify/functions-internal/__dsg/__dsg.js:3002:45)","    at Module._compile (internal/modules/cjs/loader.js:1085:14)"]}

I am using the latest Gatsby v4 and the latest Netlify plugins, and only do calls to createPage in gatsby-node to create content pages. I have no SSR or DSG pages. Everything is generated into a static file.

During the Netlify build, this message caught my attention:

1:31:13 AM: ────────────────────────────────────────────────────────────────
1:31:13 AM:   3. @netlify/plugin-gatsby (onBuild event)                     
1:31:13 AM: ────────────────────────────────────────────────────────────────
1:31:13 AM: 
1:31:13 AM: Netlify configuration property "redirects" value changed to [ { from: '/*', to: '/.netlify/functions/__dsg', status: 200 } ].

It seems that by default, gatsby creates a functions directory inside .cache, even when functions are not used

This in turn makes the condition in #

netlify-plugin-gatsby/plugin/src/index.ts

Line 64 in 44b11ad

if (!fs.existsSync(compiledFunctionsDir)) {

always true

@Bartmr I have the same problem, did you find any workaround?

It looks like Gatsby has changed its behaviour there. I'm working on the plugin now so will have a fix in tjhe next few days. In the meantime a workaround if you're not using DSG or SSR would be to add the following to the end of static/_rewrites:

/* /404.html 404

@Bartmr I have the same problem, did you find any workaround?

Yes, I'm currently deleting .cache/functions after build

@Bartmr I have the same problem, did you find any workaround?

Yes, I'm currently deleting .cache/functions after build

Thanks that solved my problem, I added this to my netlify.toml:

[build]
command = "gatsby build && rm -rf .cache/functions"

@Bartmr I have the same problem, did you find any workaround?

Yes, I'm currently deleting .cache/functions after build

Thanks that solved my problem, I added this to my netlify.toml:
[build]
command = "gatsby build && rm -rf .cache/functions"

Thank you, this seems to have sorted it for me as well for now.

Instead of deleting the folder, you should now be able to set the environment variable NETLIFY_SKIP_GATSBY_FUNCTIONS to true.

Instead of showing the 404 page, non-existing pages are pointing to Netlify functions