nativescript v2.4 + android support v25.1.0 ClassNotFoundError

[SBD580]

Hi,

Just try to upgrade the application to latest nativescript, seems like the plugin break the static binding generation. I'm not sure if this is an issue of the plugin or of the nativescript runtime.

I'm getting this exception:

:asbg:generateBindings                 
java.lang.IllegalArgumentException: clazz is null
        at org.nativescript.staticbindinggenerator.ClassInfo.<init>(ClassInfo.java:25)
        at org.nativescript.staticbindinggenerator.ClassInfo.<init>(ClassInfo.java:20)
        at org.nativescript.staticbindinggenerator.ClassInfo.<init>(ClassInfo.java:20)
        at org.nativescript.staticbindinggenerator.ClassInfo.getSuperclass(ClassInfo.java:132)
        at com.tns.bindings.Dump.isApplicationClass(Dump.java:626)
        at com.tns.bindings.Dump.getSupportedMethods(Dump.java:323)
        at com.tns.bindings.Dump.generateProxy(Dump.java:211)
        at com.tns.bindings.ProxyGenerator.generateProxy(ProxyGenerator.java:36)
        at org.nativescript.staticbindinggenerator.Generator.writeBindings(Generator.java:87)
        at org.nativescript.staticbindinggenerator.Main.main(Main.java:15)

After hours of trying to figure out what the problem is I tried to remove the plugin and the build did well.

I have found a workaround, changing "android.support" to "com.android.support" (either in this plugin sourcecode, or at the bindings.txt of the ASBG).

Shay

[SBD580]

A small after-prepare hook (as a better workaround) if anyone is interested;

var path = require("path");
var fs = require("fs");

module.exports = function() {
    console.log("nativescript-snackbar-fix");

    var snackbarFilePath = path.join(__dirname, "..", "..", "platforms", "android", "src","main","assets","app","tns_modules","nativescript-snackbar","snackbar.js");
    if (fs.existsSync(snackbarFilePath)) {
        var snackbarFileContent = fs.readFileSync(snackbarFilePath).toString();

        if (snackbarFileContent.indexOf('com.android.support') != -1) {
            return;
        }

        snackbarFileContent = snackbarFileContent.replace(/android\.support/g,'com.android.support');

        fs.writeFileSync(snackbarFilePath, snackbarFileContent);
    }
};

[SBD580]

Changing this plugin code is not solving the problem (runtime errors) the solution I used was to fix the line at the bindings.txt file (android.support => com.android.support)

Probably not an issue with this plugin rather with ASBG. Can close this one

[bradmartin]

You have an issue for sure but I'm fairly certain it's nothing with the plugin. I just created a fresh app from tns create testapp --tsc, added android, added the plugin, setup the snackbar code, build, then run and everything works fine. You might want to report this issue with the bindings on the Nativescript repo and see if they have any idea. Sorry I have nothing more for you, I can't reproduce though.

[bradmartin]

tns info from the app root.

[SBD580]

Hi,

Thanks for checking this out. What version of android support library did you used?

[bradmartin]

I have everything up to date in the sdk manager.

[bradmartin]

well dang, nevermind there is an update available, on a different laptop 😄 . Let me try one more time and see.

[bradmartin]

Alright I did encounter an error after just updating the libs and building. Not the exact error you had but an error when running. To fix I did the following:

tns create testSnack --tsc
tns platform add android
tns plugin add nativescript-snackbar
tns build android - to ensure everything was good
tns livesync android --watch - the app starts all is good

• added the code for the snackbar saved changes and the snackbar works fine 👍

Something must be messed up in the project you have, I would try cleaning the platform remove/add and then do a complete build. Uninstall the old .apk from the device and then run the new build and see if that cleans it up.

[SBD580]

Already tried all that =/ (including the plugging remove/add)

The thing is fixing the file manually does solve the problem, from the other hand no other dependency is needed the 'com.' prefix so this indeed strange...

I will try on a template project like you did and will see what the different.

Thanks again!

[SBD580]

Well, after the exact project was build successfully on an other computer I tries several thing - the thing that got that fixed was removing SDK platform 7.1.1 (API 25).

@bradmartin did you had this installed when trying to reproduce?

[bradmartin]

If that's the latest available then yes I did.

[roblav96]

@Pip3r4o Ref: NativeScript/android#665

@SBD580 @bradmartin I can confirm this plugin is causing this error. It's been driving me nuts for the past 3 days 🤕 lol
So tonight I decided to make a blank project (tns create wtf --tsc) and individually add plugins until this error came up and the conclusion is that sadly this plugin does produce this error. I'm looking into why this error is happening.

To rule out project discrepancies, every time I added a plugin I ran this npm script (npm run ra) to guarantee a fresh project each try:

"scripts": {
	"init": "npm install && tns install",
	"a": "tns livesync android --watch",
	"ra": "sudo rm -rf hooks && sudo rm -rf node_modules && sudo rm -rf platforms && sleep 1 && npm run init && npm run au && npm run a",
	"au": "adb uninstall org.nativescript.wtf"
},

tns info:

┌──────────────────┬───────────────────────┬────────────────┬───────────────┐
│ Component        │ Current version       │ Latest version │ Information   │
│ nativescript     │ 2.5.0-2016-12-23-7505 │ 2.4.2          │ Up to date    │
│ tns-core-modules │ 2.4.4                 │ 2.4.4          │ Up to date    │
│ tns-android      │ 2.4.1                 │ 2.4.1          │ Up to date    │
│ tns-ios          │                       │ 2.4.0          │ Not installed │
└──────────────────┴───────────────────────┴────────────────┴───────────────┘

[bradmartin]

Good info Rob. I hit the error but then got it working as I mentioned so it was hit or miss for me. Nonetheless hopefully Pete knows something.

[roblav96]

[UPDATE]

What I've tried so far:

• gradle compile compile "com.android.support:design:+"
• gradle compile compile "com.android.support:design:24.2.1"
• gradle compile compile "com.android.support:design:22.2.0"
• commenting out entire snackbar.android.js file

So far commenting the snackbar.android.js file is the only thing that stops the error from occurring so my guess is that it must be something to do with the binding generator? I'm not too sure :X but we're getting close :D