I've created a fairly simple import statement like
import ffi from 'ffi-napi';
const user32 = ffi.Library('user32.dll', {
// UINT SendInput(
// _In_ UINT cInputs, // number of input in the array
// _In_reads_(cInputs) LPINPUT pInputs, // array of inputs
// _In_ int cbSize); // sizeof(INPUT)
SendInput: ['uint32', ['uint32', 'pointer', 'int32']],
// int GetSystemMetrics(
// [in] int nIndex
// );
GetSystemMetrics: ['int32', ['int32']],
});Although execution of unit tests always fail on my Windows 10 machine with the cryptic stacktrace:
TypeError: Cannot read properties of null (reading 'match')
at new DynamicLibrary (F:\workspace\appium-windows-driver\node_modules\ffi-napi\lib\dynamic_library.js:67:21)
at Object.Library (F:\workspace\appium-windows-driver\node_modules\ffi-napi\lib\library.js:47:10)
at Object.<anonymous> (F:\workspace\appium-windows-driver\lib\commands\winapi\/user32.js:11:20)
at Module._compile (node:internal/modules/cjs/loader:1226:14)
at Module._compile (F:\workspace\appium-windows-driver\node_modules\pirates\lib\index.js:136:24)
at Module._extensions..js (node:internal/modules/cjs/loader:1280:10)
at Object.newLoader [as .js] (F:\workspace\appium-windows-driver\node_modules\pirates\lib\index.js:141:7)
at Module.load (node:internal/modules/cjs/loader:1089:32)
at Function.Module._load (node:internal/modules/cjs/loader:930:12)
at Module.require (node:internal/modules/cjs/loader:1113:19)
at require (node:internal/modules/cjs/helpers:103:18)
at Object.<anonymous> (F:\workspace\appium-windows-driver\lib\commands\/gestures.js:2:1)
at Module._compile (node:internal/modules/cjs/loader:1226:14)
at Module._compile (F:\workspace\appium-windows-driver\node_modules\pirates\lib\index.js:136:24)
at Module._extensions..js (node:internal/modules/cjs/loader:1280:10)
at Object.newLoader [as .js] (F:\workspace\appium-windows-driver\node_modules\pirates\lib\index.js:141:7)
at Module.load (node:internal/modules/cjs/loader:1089:32)
at Function.Module._load (node:internal/modules/cjs/loader:930:12)
at Module.require (node:internal/modules/cjs/loader:1113:19)
at require (node:internal/modules/cjs/helpers:103:18)
at Object.<anonymous> (F:\workspace\appium-windows-driver\lib\commands\/index.js:9:1)
at Module._compile (node:internal/modules/cjs/loader:1226:14)
at Module._compile (F:\workspace\appium-windows-driver\node_modules\pirates\lib\index.js:136:24)
at Module._extensions..js (node:internal/modules/cjs/loader:1280:10)
at Object.newLoader [as .js] (F:\workspace\appium-windows-driver\node_modules\pirates\lib\index.js:141:7)
at Module.load (node:internal/modules/cjs/loader:1089:32)
at Function.Module._load (node:internal/modules/cjs/loader:930:12)
at Module.require (node:internal/modules/cjs/loader:1113:19)
at require (node:internal/modules/cjs/helpers:103:18)
at Object.<anonymous> (F:\workspace\appium-windows-driver\lib\/driver.js:6:1)
at Module._compile (node:internal/modules/cjs/loader:1226:14)
at Module._compile (F:\workspace\appium-windows-driver\node_modules\pirates\lib\index.js:136:24)
at Module._extensions..js (node:internal/modules/cjs/loader:1280:10)
at Object.newLoader [as .js] (F:\workspace\appium-windows-driver\node_modules\pirates\lib\index.js:141:7)
at Module.load (node:internal/modules/cjs/loader:1089:32)
at Function.Module._load (node:internal/modules/cjs/loader:930:12)
at Module.require (node:internal/modules/cjs/loader:1113:19)
at require (node:internal/modules/cjs/helpers:103:18)
at Object.<anonymous> (F:\workspace\appium-windows-driver\test\unit\/driver-specs.js:3:1)
at Module._compile (node:internal/modules/cjs/loader:1226:14)
at Module._compile (F:\workspace\appium-windows-driver\node_modules\pirates\lib\index.js:136:24)
at Module._extensions..js (node:internal/modules/cjs/loader:1280:10)
at Object.newLoader [as .js] (F:\workspace\appium-windows-driver\node_modules\pirates\lib\index.js:141:7)
at Module.load (node:internal/modules/cjs/loader:1089:32)
at Function.Module._load (node:internal/modules/cjs/loader:930:12)
at ModuleWrap.<anonymous> (node:internal/modules/esm/translators:169:29)
at ModuleJob.run (node:internal/modules/esm/module_job:194:25)
From checking the source code it looks like dlerror call returns null, which causes the above exception.
The complete pull request could be found at appium/appium-windows-driver#163
Environment info:
OS: Windows 10 x64
Node.js: x64 v 18.14.0
npm: 9.3.1
ffi-napi: 4.0.3
I've created a fairly simple import statement like
Although execution of unit tests always fail on my Windows 10 machine with the cryptic stacktrace:
From checking the source code it looks like dlerror call returns null, which causes the above exception.
The complete pull request could be found at appium/appium-windows-driver#163
Environment info:
OS: Windows 10 x64
Node.js: x64 v 18.14.0
npm: 9.3.1
ffi-napi: 4.0.3