Steps to be able to build Accelerator clients (MVC, Email) with yarn/node/npm/BuildClientScripts

Questions
,
1

I get node-sass errors when building the Accelerator clients (the Email client or the MVC client) no matter how I try to do it.

The error is in the yarn pipeline somewhere:

error C:\Users\…\Src\Litium.Accelerator.Email\node_modules\node-sass: Command failed.
Exit code: 1
Command: node scripts/build.js

The actual error is this:

gyp ERR! stack Error: Command failed: C:\Python39\python.EXE -c import sys; print “%s.%s.%s” % sys.version_info[:3];
gyp ERR! stack File “”, line 1
gyp ERR! stack import sys; print “%s.%s.%s” % sys.version_info[:3];
gyp ERR! stack ^
gyp ERR! stack SyntaxError: invalid syntax

I’ve tried both running BuildClientProjects and running yarn directly in the MVC/Email project directories.

From some web searching, this seems like a version mismatch between node, yarn, npm, python and/or node-sass.

What are the actual steps to get a working BuildClientProjects?

  1. Install Visual Studio. Does it matter which workloads?
  2. Install node? Or should we use the node/npm stuff included in Visual Studio?
  3. Install yarn? Via npm? Or via the installer?
  4. Something else?

The Accelerator installation instructions are a bit vague and link to an old version of yarn.

Litium version: 7.latest

2

Python 3.latest was installed with Node. After downgrading to Python 2.latest, I get this error instead:

ERROR in ./Styles/site.scss
Module build failed (from …/node_modules/mini-css-extract-plugin/dist/loader.js):
ModuleBuildError: Module build failed (from …/node_modules/sass-loader/lib/loader.js):
Error: Node Sass does not yet support your current environment: Windows 32-bit with Unsupported runtime (83)

3

The documentation page for a specific add-on says to npm rebuild node-sass if there are problems with yarn, but running that gives this error:

gyp ERR! UNCAUGHT EXCEPTION
gyp ERR! stack Error: spawn C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\MSBuild\15.0\Bin\MSBuild.exe ENOENT
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:269:19)
gyp ERR! stack at onErrorNT (internal/child_process.js:467:16)
gyp ERR! stack at processTicksAndRejections (internal/process/task_queues.js:82:21)
gyp ERR! System Windows_NT 10.0.17763
gyp ERR! command “C:\Program Files (x86)\nodejs\node.exe” “C:\Users\…\Src\Litium.Accelerator.Mvc\node_modules\node-gyp\bin\node-gyp.js” “rebuild” “–verbose” “–libsass_ext=” “–libsass_cflags=” “–libsass_ldflags=” “–libsass_library=”
gyp ERR! cwd C:\Users.…\Src\Litium.Accelerator.Mvc\node_modules\node-sass
gyp ERR! node -v v14.17.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! This is a bug in node-gyp.

It looks like the path to MSBuild.exe is incorrect.

4

Remove node_modules folder and use yarn to install and rebuild the node-sass if necessary and try to build again.

5

Also make sure that node-sass supports the version of node you have installed. I believe the Accelerator uses node-sass 4.x which supports up to node 13.

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6

Are there any plans to upgrade or support more recent versions of Node.js?

7

Bug is created to upgrade. In later version (Litium 8) we have updated to use the sass compiler instead and most probably the same change are compatible with the Litium 7 version of accelerator also.

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1 Like
8

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