Classes not found in third party iOS framework - appcelerator-hyperloop

Question

I am using Appcelerator Hyperloop in the hopes of integrating a third party iOS framework called KolorEyes into my Titanium app.
Here is my appc.js file:
module.exports = {
hyperloop: {
ios: {
xcodebuild: {
flags: {
FRAMEWORK_SEARCH_PATHS: '../../src',
LD_RUNPATH_SEARCH_PATHS: '#executable_path'
},
frameworks: [
'KolorEyes'
]
},
thirdparty: {
'KolorEyes': {
source: ['src'],
header: 'src',
resource: 'src'
}
}
}
}
};
I have my KolorEyes.framework folder in my src folder at the root of my project.
What I'm doing looks like it should work:
index.js
var KolorEyes = require('KolorEyes/KolorEyes');
var KolorEyesSessionParams = require('KolorEyes/KolorEyesSessionParams');
var KolorEyesRenderViewParams = require('KolorEyes/KolorEyesRenderViewParams');
console.log('CLASS: ' + KolorEyes);
console.log('CLASS: ' + KolorEyesSessionParams);
console.log('CLASS: ' + KolorEyesRenderViewParams);
And here is the output:
[INFO] : CLASS: [class KolorEyes]
[INFO] : CLASS: [class KolorEyesSessionParams]
[INFO] : CLASS: [class KolorEyesRenderViewParams]
But when I try to do this:
var params = KolorEyesSessionParams.alloc().init();
It tells me it cannot find the class KolorEyesSessionParams:
[ERROR] : Cannot find class with name: KolorEyesSessionParams
[ERROR] : Script Error {
[ERROR] : column = 32;
[ERROR] : description = "Cannot find class with name: KolorEyesSessionParams";
[ERROR] : line = 108;
[ERROR] : message = "Cannot find class with name: KolorEyesSessionParams";
[ERROR] : name = ClassNotFound;
[ERROR] : nativeStack = "1 libobjc.A.dylib 0x23a6ae17 objc_exception_throw + 38\n2 kolor_test 0x0019ce0b kolor_test + 1515019\n3 kolor_test 0x00195d05 kolor_test + 1486085\n4 JavaScriptCore 0x275f77cd <redacted> + 364\n5 JavaScriptCore 0x273c7dfb <redacted> + 314\n6 JavaScriptCore 0x273c6629 <redacted> + 120\n7 JavaScriptCore 0x2768302f <redacted> + 20366\n8 JavaScriptCore 0x27683039 <redacted> + 20376\n9 JavaScriptCore 0x2767de91 <redacted> + 336\n10 JavaScriptCore 0x275d87db <redacted> + 102\n11 JavaScriptCore 0x273caa09 <redacted> + 344\n12 JavaScriptCore 0x273ca8ad _ZN3JSC4callEPNS_9ExecStateENS_7JSValueENS_8CallTypeERKNS_8CallDataES2_RKNS_7ArgListE + 52\n13 JavaScriptCore 0x275887a3 <redacted> + 126\n14 JavaScriptCore 0x276dc183 _ZNK3JSC12PropertySlot14functionGetterEPNS_9ExecStateE + 42\n15 JavaScriptCore 0x273c220b <redacted> + 1406\n16 JavaScriptCore 0x276804ed <redacted> + 9292\n17 JavaScriptCore 0x27683039 <redacted> + 20376\n18 JavaScriptCore 0x27683135 <redacted> + 20628\n19 JavaScriptCore 0x27683039 <redacted> + 20376\n20 JavaScriptCore 0x2767de91 <redacted> + 336\n21 JavaScriptCore 0x275d87db <redacted> + 102\n22 JavaScriptCore 0x273b8d0d <redacted> + 7292\n23 JavaScriptCore 0x274c839b _ZN3JSC8evaluateEPNS_9ExecStateERKNS_10SourceCodeENS_7JSValueERN3WTF8NakedPtrINS_9ExceptionEEE + 354\n24 JavaScriptCore 0x275f6ba5 JSEvaluateScript + 268\n25 kolor_test 0x0003c91d kolor_test + 71965\n26 kolor_test 0x00042fa7 kolor_test + 98215\n27 kolor_test 0x00044741 kolor_test + 104257\n28 kolor_test 0x00044b81 kolor_test + 105345\n29 kolor_test 0x0003caf3 kolor_test + 72435\n30 kolor_test 0x0003da83 kolor_test + 76419\n31 kolor_test 0x00045589 kolor_test + 107913\n32 kolor_test 0x00044521 kolor_test + 103713\n33 libdispatch.dylib 0x23e3d823 <redacted> + 10\n34 libdispatch.dylib 0x23e3d80f <redacted> + 22\n35 libdispatch.dylib 0x23e4bba9 <redacted> + 1524\n36 CoreFoundation 0x24291b6d <redacted> + 8\n37 CoreFoundation 0x24290067 <redacted> + 1574\n38 CoreFoundation 0x241df229 CFRunLoopRunSpecific + 520\n39 CoreFoundation 0x241df015 CFRunLoopRunInMode + 108\n40 GraphicsServices 0x257cfac9 GSEventRunModal + 160\n41 UIKit 0x288b3189 UIApplicationMain + 144\n42 kolor_test 0x00030747 kolor_test + 22343\n43 libdyld.dylib 0x23e87873 <redacted> + 2";
[ERROR] : sourceURL = "file:///var/containers/Bundle/Application/1536D545-76AB-48FA-BDF7-C2729A175F82/kolor_test.app/hyperloop/koloreyes/koloreyessessionparams.js";
[ERROR] : }
I have no issue using UIKit stuff, but these third party classes are just not seen. Even though Hyperloop says it's generating classes for them:
[INFO] : [Hyperloop] Generating class GLKit/GLKView
[INFO] : [Hyperloop] Generating class GLKit/GLKViewController
[INFO] : [Hyperloop] Generating class KolorEyes/KolorEyes
[INFO] : [Hyperloop] Generating class KolorEyes/KolorEyesRenderViewParams
[INFO] : [Hyperloop] Generating class KolorEyes/KolorEyesSessionParams
[INFO] : [Hyperloop] Generating class ModelIO/MDLCamera
[INFO] : [Hyperloop] Generating class ModelIO/MDLLight
Any ideas?

Answer 1

I am having this same issue. According to this response, the issue is that a framework is being used on a platform earlier than what the framework was created for.
Can confirm that once I rebuilt the framework (needed to build against iOS 12 instead of iOS 13) with an older version of the SDK that this issue was resolved for me.
This is a general issue where you cannot run version-specific code on
older devices. Will move and rename it, thanks for reporting this!
Jan Vennemann That's what we discussed a few days ago. I have no final
plan for this, yet, but as the error occurs with referencing the iOS
framework (not the actual API) that's only available in a certain
version and higher (in this case: "Speech.framework", iOS 10+), we may
be able to solve this by guarding the frameworks with their iOS
version if their version is higher then the default one (e.g. 8.1 in
our case).
I could even think of a workaround: If we pass link the framework via
the appc.js, we can pass linker-flags as well, so something like I've
done in my ARKit module maybe. Btw, this could eventually be a
module-related issue as well, as we don't need the module.xcconfig
there anymore and frameworks are linked automatically. If we can
ensure to pass them to the correct architecture and version, we should
be fine!
Source:
https://jira.appcelerator.org/browse/TIMOB-25440?focusedCommentId=429553&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-429553