nan: nan_callbacks.h:55:23: error: ‘AccessorSignature’ is not a member of ‘v8’

This solved it for me https://stackoverflow.com/questions/61657685/npm-doesnt-install-node-gyp-error-class-v8object-has-no-member-named-for

npm install -g npm-check-updates
npm-check-updates -u
npm install

It just upgrades the libraries in package.json to the latest versions

If someone is wondering Node.JS 20 build failure use similar approach as above with updated version since some package did not update it on their latest like: sharp

  "resolutions": {
    "nan": "2.18.0"
  },

A PR has already been sent to fix this - https://github.com/nodejs/nan/pull/941.

It works for me if I use yarn

yarn add nan 

@RichardFoss I didn’t follow that approach and it works in my case. This is what I did:

1. Add a resolution into the package.json (in the root of the repository if it’s a monorepo):

2. Add patch-package package to apply a patch after npm install:

  "scripts": {
    "postinstall": "patch-package || true",
  },
  "devDependencies": {
    "patch-package": "^6.4.7",
  },

1. Create or add the following patch (patches/nan+2.16.0.patch):

diff --git a/node_modules/nan/nan.h b/node_modules/nan/nan.h
index 9e7c59e..0326246 100644
--- a/node_modules/nan/nan.h
+++ b/node_modules/nan/nan.h
@@ -2516,8 +2516,7 @@ inline void SetAccessor(
   , SetterCallback setter = 0
   , v8::Local<v8::Value> data = v8::Local<v8::Value>()
   , v8::AccessControl settings = v8::DEFAULT
-  , v8::PropertyAttribute attribute = v8::None
-  , imp::Sig signature = imp::Sig()) {
+  , v8::PropertyAttribute attribute = v8::None) {
   HandleScope scope;
 
   imp::NativeGetter getter_ =
@@ -2550,9 +2549,6 @@ inline void SetAccessor(
     , obj
     , settings
     , attribute
-#if (NODE_MODULE_VERSION < NODE_18_0_MODULE_VERSION)
-    , signature
-#endif
   );
 }
 
diff --git a/node_modules/nan/nan_callbacks.h b/node_modules/nan/nan_callbacks.h
index 53ede84..ea81e45 100644
--- a/node_modules/nan/nan_callbacks.h
+++ b/node_modules/nan/nan_callbacks.h
@@ -52,8 +52,6 @@ typedef void(*IndexQueryCallback)(
     const PropertyCallbackInfo<v8::Integer>&);
 
 namespace imp {
-typedef v8::Local<v8::AccessorSignature> Sig;
-
 static const int kDataIndex =                    0;
 
 static const int kFunctionIndex =                1;

I am using a midi package. Recently I updated to node v 18.10.0 and nw v0.69.1. When I rebuild: nw-gyp rebuild --target=0.69.1 --arch=x64 I get: …/…/nan/nan_callbacks.h:55:23: error: no member named ‘AccessorSignature’ in namespace ‘v8’ typedef v8::Localv8::AccessorSignature Sig;

I have looked at various resolutions to the issue in this thread. I have tried putting this into the midi package.json:
"overrides": {
"nan": "github:jkleinsc/nan#remove_accessor_signature"
},
But still get the same message. Any suggestions?

Let’s keep this open for now. It will get closed automatically when the PR lands!

A PR has already been sent to fix this - #941.

Confirmed, this PR fix my problem when rebuild electron with node-pty.

Same problem when trying to compile for Electron v20

Building module: fsuipc, Completed: 0D:\devl\electron\fsecosystem\node_modules\nan\nan_callbacks.h(55,23): error C2039: 'AccessorSignature': is not a member of 'v8' [D:\devl\electron\fsecosystem\node_modules\fsuipc\build\fsuipc.vcxproj]
C:\Users\Matt\.electron-gyp\20.0.1\include\node\v8.h(71): message : see declaration of 'v8' [D:\devl\electron\fsecosystem\node_modules\fsuipc\build\fsuipc.vcxproj]