Status 403 from https://github.com/lovell/sharp-libvips/releases/download/...

I’m pretty new to Heroku, but I have managed to get the npm install command to work on my Linux server, Windows machine and my Mac. On Heroku, I get this error when deploying my app:

-----> VIPS app detected
-----> Installing libvips
       Downloading libvips and unpacking
       libvips installed
-----> Node.js app detected
       
-----> Creating runtime environment
       
       NPM_CONFIG_LOGLEVEL=error
       NODE_VERBOSE=false
       NODE_ENV=production
       NODE_MODULES_CACHE=false
       
-----> Installing binaries
       engines.node (package.json):  unspecified
       engines.npm (package.json):   unspecified (use default)
       
       Resolving node version 10.x...
       Downloading and installing node 10.15.3...
       Using default npm version: 6.4.1
       
-----> Restoring cache
       Caching has been disabled because NODE_MODULES_CACHE=false
       
-----> Installing dependencies
       Installing node modules (package.json + package-lock)
       
       > sharp@0.21.0 install /tmp/build_de25ad290908a11f95fbe6f4c89bd6e4/node_modules/sharp
       > (node install/libvips && node install/dll-copy && prebuild-install) || (node-gyp rebuild && node install/dll-copy)
       
       info sharp Downloading https://github.com/lovell/sharp-libvips/releases/download/v8.7.0/libvips-8.7.0-linux-x64.tar.gz
       /tmp/build_de25ad290908a11f95fbe6f4c89bd6e4/node_modules/sharp/install/libvips.js:80
                 throw new Error(`Status ${response.statusCode}`);
                 ^
       
       Error: Status 403
           at /tmp/build_de25ad290908a11f95fbe6f4c89bd6e4/node_modules/sharp/install/libvips.js:80:17
           at f (/tmp/build_de25ad290908a11f95fbe6f4c89bd6e4/node_modules/once/once.js:25:25)
           at ClientRequest.protocol.request.res (/tmp/build_de25ad290908a11f95fbe6f4c89bd6e4/node_modules/simple-get/index.js:63:5)
           at Object.onceWrapper (events.js:277:13)
           at ClientRequest.emit (events.js:189:13)
           at HTTPParser.parserOnIncomingClient [as onIncoming] (_http_client.js:556:21)
           at HTTPParser.parserOnHeadersComplete (_http_common.js:109:17)
           at TLSSocket.socketOnData (_http_client.js:442:20)
           at TLSSocket.emit (events.js:189:13)
           at addChunk (_stream_readable.js:284:12)
       make: Entering directory '/tmp/build_de25ad290908a11f95fbe6f4c89bd6e4/node_modules/sharp/build'
         TOUCH Release/obj.target/libvips-cpp.stamp
         CXX(target) Release/obj.target/sharp/src/common.o
       ../src/common.cc:25:22: fatal error: vips/vips8: No such file or directory
       compilation terminated.
       sharp.target.mk:126: recipe for target 'Release/obj.target/sharp/src/common.o' failed
       make: *** [Release/obj.target/sharp/src/common.o] Error 1
       make: Leaving directory '/tmp/build_de25ad290908a11f95fbe6f4c89bd6e4/node_modules/sharp/build'
       gyp ERR! build error 
       gyp ERR! stack Error: `make` failed with exit code: 2
       gyp ERR! stack     at ChildProcess.onExit (/tmp/build_de25ad290908a11f95fbe6f4c89bd6e4/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:262:23)
       gyp ERR! stack     at ChildProcess.emit (events.js:189:13)
       gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:248:12)
       gyp ERR! System Linux 4.4.0-1038-aws
       gyp ERR! command "/tmp/build_de25ad290908a11f95fbe6f4c89bd6e4/.heroku/node/bin/node" "/tmp/build_de25ad290908a11f95fbe6f4c89bd6e4/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
       gyp ERR! cwd /tmp/build_de25ad290908a11f95fbe6f4c89bd6e4/node_modules/sharp
       gyp ERR! node -v v10.15.3
       gyp ERR! node-gyp -v v3.8.0
       gyp ERR! not ok 
       npm ERR! code ELIFECYCLE
       npm ERR! errno 1
       npm ERR! sharp@0.21.0 install: `(node install/libvips && node install/dll-copy && prebuild-install) || (node-gyp rebuild && node install/dll-copy)`
       npm ERR! Exit status 1
       npm ERR! 
       npm ERR! Failed at the sharp@0.21.0 install script.
       npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
       
       npm ERR! A complete log of this run can be found in:
       npm ERR!     /tmp/npmcache.Fqauu/_logs/2019-03-28T16_16_10_448Z-debug.log
-----> Change to Node.js build process 
       Heroku has begun executing the "build" script defined in package.json
       during Node.js builds.
       Read more: https://devcenter.heroku.com/changelog-items/1573
-----> Build failed
       
       We're sorry this build is failing! You can troubleshoot common issues here:
       https://devcenter.heroku.com/articles/troubleshooting-node-deploys
       
       Some possible problems:
       
       - Node version not specified in package.json
         https://devcenter.heroku.com/articles/nodejs-support#specifying-a-node-js-version
       
       Love,
       Heroku
       
 !     Push rejected, failed to compile Node.js app.
 !     Push failed

And as suggested in other issues, I have this buildpack added: https://github.com/alex88/heroku-buildpack-vips.git. Any suggestions on what the issue might be?

[lovell]

I’ve contacted GitHub support about this.

[lovell]

A reply from GitHub:

“I have escalated this to our data center team. I do not have an ETA currently but we’ll follow up as soon as we have some news. I’m sorry for the trouble this is causing in the meantime!”