Error build Android (Defold 1.2.172)

**gritsaenkosergeia** · August 25, 2020, 9:11am

Hi! I used the new version of Defold to open my old project, it has no dependencies. I get this error when building for Android:

Unknown source:
contextResource cannot be null.

**Pkeod** · August 25, 2020, 10:31am

If you make an Android bundle with bob.jar directly it might give you a more specific error printed to the console.

I vaguely remember this error happening once in one of our projects but never posted about it. Sometimes to find weird problems like this we make a copy of a project and strip parts out, then try to bundle again, and repeat until it works to narrow down the problem.

**britzl** · August 25, 2020, 11:28am

It originates from this line of code:

github.com

defold/defold/blob/dev/com.dynamo.cr/com.dynamo.cr.bob/src/com/dynamo/bob/MultipleCompileException.java#L88


    Info info = new Info();
    info.severity = severity;
    info.resource = resource;
    info.lineNumber = lineNumber;
    info.message = message;
    this.issues.add(info);
}


public void attachLog(IResource contextResource, String rawLog) {
    if (contextResource == null) {
        throw new IllegalArgumentException("contextResource cannot be null.");
    }


    if (rawLog == null) {
        throw new IllegalArgumentException("rawLog cannot be null.");
    }


    this.contextResource = contextResource;
    this.rawLog = rawLog;
}

From here:

github.com

defold/defold/blob/dev/com.dynamo.cr/com.dynamo.cr.bob/src/com/dynamo/bob/bundle/BundleHelper.java#L1145


            if (contextResource == null && issueResource != null) {
                contextResource = issueResource;
            }
        }


        // If we do not yet have a context resource - fall back on an ext.manifest (possibly the wrong one!)
        if (contextResource == null) {
            contextResource = extManifestResource;
        }


        exception.attachLog(contextResource, buildError);
        throw exception;
    } catch (IOException ioe) {
        buildError = "<failed reading log>";
    } catch (CompileExceptionError ioe) {
        buildError = String.format("'%s' could not be built. Sdk version: '%s'\nLog: '%s'", platform, sdkVersion, buildError);
        throw new CompileExceptionError(buildError, e.getCause());
    }
}
buildError = String.format("'%s' could not be built. Sdk version: '%s'\nLog: '%s'", platform, sdkVersion, buildError);
throw new CompileExceptionError(buildError, e.getCause());

Are you using an app manifest to reduce the engine size?

**gritsaenkosergeia** · August 25, 2020, 12:24pm

Thank you for your answer, Yes I use app manifest, but it doesn’t seem to be the case. I still get this error. Maybe I should create a new project and add all the resources again

**britzl** · August 25, 2020, 12:41pm

You could try that but I’d like to understand why you got the error in the first place. If you are able to share the project with me (bjorn@defold.se) I can take a look as well.

**gritsaenkosergeia** · August 25, 2020, 1:02pm

I sent the project to you. Tell me if you find a problem, thank you

**Ceonello** · September 14, 2020, 9:34am

Just to add to the case, i’m having the same problem bundling the extension https://github.com/defold/extension-admob/ for android.

**Mathias_Westerdahl** · September 14, 2020, 9:44am

Do you have any more info about your troubles? Any build logs or errors?

**gritsaenkosergeia** · September 14, 2020, 9:49am

Yes, the admob extension is to blame. Its owner asks you to pay in patreon. I just removed this extension and now use unity ads, which is much better than admob. Now everything is fine

**Mathias_Westerdahl** · September 14, 2020, 10:02am

Note that this was the defold extension, which admittedly hasn’t gotten much love or attention. However, we’d still like to be able to build it properly.

**Ceonello** · September 14, 2020, 4:47pm

Hi Mathias, i just downloaded the project from https://github.com/defold/extension-admob/ and tried building it targeting Android Apk.
The building process stop wit this is error “contextResource cannot be null.”
If i can help in other ways just tell me.

Thank you

**Ceonello** · September 14, 2020, 5:33pm

As suggested in a post of this thread, i tried building the project with bob.jar from command line, this is the exception stacktrace:
C:\Dev\Common\Defold-x86_64-win32\Defold_Workspace\admob_test>“C:\Program Files\Java\jdk-14.0.2+12\bin\java.exe” -jar bob.jar --archive --platform armv7-android resolve distclean build bundle
2147483647% 1% 2% 3% 4% 5% 6% 7% 8% 9% 10% 11% 12% 13% 14% 15% 16% 17% 18% 19% 20% 21% 22% 23% 24% 25% 26% 27% 28% 29% 30% 31% 32% 33% 34% 35% 36% 37% 38% 39% 40% 41% 42% 43% 44% 45% 46% 47% 48% 49% 50% 51% 52% 53% 54% 55% 56% 57% 58% 59% 60% 61% 62% 63% 64% 65% 66% 67% 68% 69% 70% 71% 72% 73% 74% 75% 76% 77% 78% 79% 80% 81% 82% 83% 84% 85% 86% 87% 88% 89% 90% 91% 92% 93% 94% 95% 96% 97% 98% 99%Exception in thread “main” com.dynamo.bob.CompileExceptionError: contextResource cannot be null.
at com.dynamo.bob.Project.build(Project.java:452)
at com.dynamo.bob.Bob.main(Bob.java:621)
Caused by: java.lang.IllegalArgumentException: contextResource cannot be null.
at com.dynamo.bob.MultipleCompileException.attachLog(MultipleCompileException.java:88)
at com.dynamo.bob.bundle.BundleHelper.buildEngineRemote(BundleHelper.java:1145)
at com.dynamo.bob.Project.buildEngine(Project.java:715)
at com.dynamo.bob.Project.doBuild(Project.java:836)
at com.dynamo.bob.Project.build(Project.java:442)

**Nicholas_Hunt** · September 23, 2020, 2:50pm

So is there a fix for this or do we just have to pay this guy so I can update my app. Aside from changing to Unity.

**britzl** · September 23, 2020, 3:38pm

The extension discussed in this thread is ancient and has never really been used in production. It was one of the first extensions ever created to test the feature. @sergey.lerg created a proper AdMob extension a long time ago. At first it was rev-share and recently change to paid access. The old rev-share version is still available:

Another alternative is to use Enhance to inject AdMob into your APK: https://defold.com/assets/enhance/

Or switch to UnityAds: https://defold.com/assets/defvideoads/

A final option would be to fix up the extension discussed in this thread, but that’s probably the most difficult if you haven’t worked with extensions before.