Troubleshooting¶

Compilation Troubleshooting¶

When errors occur during the compilation process, the compilation environment should be checked first.

Runnable Compilation Environment¶

✅ Runnable Environment¶

• AGP com.android.tools.build:gradle version 3.5.0 or above
• Gradle version 5.4.0 or above
• Java version 8.0 or above
• Android minSdkVersion 21

Note: As the Android Studio version updates, the compatibility of these versions will also change. If you encounter compilation errors despite meeting the above conditions, please contact our developers.

⚠️ Compatible Runnable Environment¶

• AGP com.android.tools.build:gradle version 3.0.1 or above
• Gradle version 4.8.1 or above
• Java version 8.0 or above
• Android minSdkVersion 21

In this environment, ft-plugin cannot be used, and the automatic data capture part needs to be manually integrated. For more information on manual integration, refer to here.

SDK Cannot Resolve Import¶

The above error occurs because the maven repository is not correctly set up. Please refer to the configuration here.

Compilation Errors¶

Desugaring Error¶

>Task :app:transformClassesWithStackFramesFixerForDebug
    Exception in thread "main" java.lang.IllegalStateException: Expected a load for Ljava/lang/String; to set up parameter 0 for com/ft/sdk/FTRUMGlobalManager$$Lambda$11 but got 95
        at com.google.common.base.Preconditions.checkState (Preconditions.java:756)
        at com.google.devtools.build. android.desugar.LambdaDesugaring$InvokedynamicRewriter .attemptAllocationBeforeArgumentLoadsLambdaDesugaring.java:535)
        at com.google.devtools.build.android.desugar.LambdaDesugaring$InvokedynamicRewriter.visitInvokeDynamicInsn
        (LambdaDesugaring.java: 420)
        at org.objectweb.asm.ClassReader.a(Unknown Source)
        at org.objectweb.asm.ClassReader.b(Unknown Source)
        at org.objectweb.asm.ClassReader.accept(Unknown Source)
        at org.objectweb.asm.ClassReader.accept(Unknown Source)
        at com.google.devtools.build. android.desugar. Desugar.desugarClassesInInput (Desugar.java:401) at com.google.devtools.build.android.desugar.Desugar.desugar0neInput(Desugar.java:326) at com.google.devtools.build.android.desugar. Desugar.desugar (Desugar.java:280) at com.google.devtools.build.android.desugar. Desugar.main (Desugar.java:584)

dependencies {
    implementation('com.cloudcare.ft.mobile.sdk.tracker.agent:ft-sdk:1.3.10.beta01')//1.3.10 or above
}

API 'android.registerTransform' is obsolete¶

Transform has been marked as Deprecated in AGP 7.0 and has been removed in AGP 8.0. ft-plugin:1.2.0 has been adapted to this change. Please upgrade to the corresponding version to fix this error. For more details, see Integration Configuration.

AndroidComponentsExtension ClassNotFoundException¶

AndroidComponentsExtension is a method supported by AGP 7.4.2. If the compilation environment is below this version, this error will occur. You can use the ft-plugin-legacy version to fix this error. For more details, see Integration Configuration.

java.lang.IllegalArgumentException:¶

• Invalid opcode 169

If this error occurs while using ft_plugin_legacy, it is a bug in the asm-commons:7.0 version. The original issue is here. You can resolve this by depending on org.ow2.asm:asm-commons:7.2 or above in the plugin configuration. Use ./gradlew buildEnvironment to confirm the actual asm-commons version being used.

buildscript {
    dependencies {
        classpath 'com.cloudcare.ft.mobile.sdk.tracker.plugin:ft-plugin-legacy:[version]'
        // Add dependency
        classpath 'org.ow2.asm:asm-commons:7.2' 
    }
}

• org.ow2.asm:asm version below 7.0

Currently, the plugin version only supports build environments using org.ow2.asm:asm7.x or above. Use ./gradlew buildEnvironment to query the build environment and confirm this issue. This problem can be fixed by forcibly depending on 7.x or above versions. It is recommended to use version 7.2 or above.

buildscript {
    dependencies {
        classpath 'com.cloudcare.ft.mobile.sdk.tracker.plugin:ft-plugin-legacy:[version]'
         // Add dependency
        classpath 'org.ow2.asm:asm:7.2'
        classpath 'org.ow2.asm:asm-commons:7.2'
    }
}

SDK Initialization Exception Check¶

Check Logcat to see if there are any logs with Level as Error and Tag prefixed with [FT-SDK].

[FT-SDK] com.demo E Please install the SDK first (call FTSdk.install(FTSDKConfig ftSdkConfig) when the application starts)

Enable Debug Mode¶

ft-sdk Debug Mode¶

You can enable the SDK's debug function with the following configuration. Once enabled, the SDK debug logs will be output to the console LogCat. You can filter the [FT-SDK] characters to locate the Guance SDK logs.

  val config = FTSDKConfig.builder(datakitUrl).setDebug(true)
  FTSdk.install(config)

Log Sample¶

Data Sync¶

//Check if the upload address is correctly entered into the SDK configuration
[FT-SDK]FTHttpConfigManager com.demo D  serverUrl ==>
                                    Datakit Url:http://10.0.0.1:9529
//The following are connection error logs
[FT-SDK]SyncTaskManager com.demo   E  Network not available Stop poll
[FT-SDK]SyncTaskManager com.demo   E  ↵
            1:Sync Fail-[code:10003,response:failed to connect to 10.0.0.1 (port 9529) from ↵
            10.0.2.16 (port 47968) after 10000ms,check if the local network connection is normal]

//The following are normal sync logs
[FT-SDK]SyncTaskManager com.demo   D  Sync Success-[code:200,response:]

It is recommended to turn off this configuration when releasing the Release version

ft-plugin Debug Mode¶

You can enable the Plugin's debug logs with the following configuration. Once enabled, you can find the [FT-Plugin] output logs in the Build output logs. Use this to check the Plugin ASM write status.

FTExt {
    //Whether to show Plugin logs, default is false
    showLog = true
}

It is recommended to turn off this configuration when releasing the Release version

SDK Internal Logs Converted to Cache File¶

// >= 1.4.6
// Default path: /data/data/{package_name}/files/LogInner.log
LogUtils.registerInnerLogCacheToFile()

// >= 1.4.5+ 
val cacheFile = File(filesDir, "LogCache.log")
LogUtils.registerInnerLogCacheToFile(cacheFile)

To ensure the integrity of internal logs, this configuration should be set before SDK initialization

SDK Runs Normally but No Data¶

• Check Datakit to see if it is running normally.

• Confirm that the SDK upload address datakitUrl or datawayUrl is configured correctly and initialized correctly. In debug mode, check the logs to determine upload issues.

• Check if datakit is uploading data to the corresponding workspace and if it is offline. This can be confirmed by logging into Guance and checking the "Infrastructure" section.

  

Compatibility Issues with Okhttp 3.12.+¶

ft-sdk < 1.6.13, if data upload compression is enabled FTSDKConfig.setCompressIntakeRequests(true), you may find that the SDK collects data successfully, but there are no error prompts during data synchronization, and no http code logs are printed.

Solution: Use ft-sdk >= 1.6.13 or okhttp 4.5.0 or above to resolve this issue.

Data Loss¶

Partial Data Loss¶

• If some Session data or Log, Trace data is missing, first check if sampleRate < 1 is set in FTRUMConfig, FTLoggerConfig, FTTraceConfig.
• Check the network of the device uploading data and the network and load of the device where datakit is installed.
• Confirm that FTSdk.shutDown is called correctly. This method will release the SDK data processing objects, including cached data.

Resource Data Loss¶

Automatic Collection, ft-plugin Not Correctly Integrated¶

Resource automatic collection requires Plugin ASM bytecode writing to automatically set OkHttpClient Interceptor and EventListener, and write FTTraceInterceptor, FTResourceInterceptor, FTResourceEventListener.FTFactory. If Plugin is not used, refer to here.

OkHttpClient.build() ASM Writing Issue¶

Plugin ASM will automatically inject network collection functionality when the application calls OkHttpClient.Builder().build(). The following two situations may cause network collection failure: 1. Timing issue - SDK initialization is not complete. If OkHttpClient.Builder().build() is called before SDK initialization is complete, it will lead to loading empty configurations, resulting in Resource data loss. Check the debug logs to confirm the initialization sequence is correct. 2. Creation method issue. The standard OkHttpClient.Builder().build() method is not used to create the OkHttpClient object, such as directly instantiating OkHttpClient or using other construction methods.

//SDK initialization logs
[FT-SDK]FTSdk   com.ft  D  initFTConfig complete
[FT-SDK]FTSdk   com.ft  D  initLogWithConfig complete
[FT-SDK]FTSdk   com.ft  D  initRUMWithConfig complete
[FT-SDK]FTSdk   com.ft  D  initTraceWithConfig complete

//SDK OkHttpClient.Builder.build() call logs
//(Should be called after SDK initialization)
[FT-SDK]AutoTrack   com.ft  D  trackOkHttpBuilder    

If the initialization call order cannot be adjusted, you can choose to integrate manually here.

Using Interceptor or EventListener to Process Data Twice¶

After Plugin ASM is inserted, addInterceptor will be added to OkHttpClient.Builder() in the original project code, including FTTraceInterceptor and FTResourceInterceptor, which will use the http request body contentLength to calculate a unique id. The data of each stage of Resource is concatenated through this id. Therefore, if the integrator also adds addInterceptor when using Okhttp and processes the data twice, causing its size to change, the id calculation at each stage will be inconsistent, resulting in data loss.

Solution:

• ft-sdk < 1.4.1

  By customizing the addInterceptor position order, let the SDK method calculate the id first to solve this problem. To avoid duplicate settings, the custom method needs to disable FTRUMConfig's enableTraceUserResource and FTTraceConfig's enableAutoTrace configurations.

• ft-sdk >= 1.4.1

  The SDK adapts to this issue in non-manual settings. If manual settings have been made, ensure that Interceptor is in a forward position.

Compatibility Issues with Okhttp 3.12.+¶

ft-sdk < 1.6.13 If the Interceptor used reads the response body content for read, it may cause the current Resource data to be uncollectable.

Solution:

• ft-sdk < 1.6.13

  • Without changing the Okhttp version, manually set to solve this problem.

  OkHttpClient.Builder builder = new OkHttpClient.Builder()
      .addInterceptor(new CustomReadReponseInterceptor())//Read response body
      .addInterceptor(new FTTraceInterceptor())
      .addInterceptor(new FTResourceInterceptor())
      .addInterceptor(new CustomRequestBodyFixInterceptor())//Encrypt or modify body
      .eventListenerFactory(new FTResourceEventListener.FTFactory());
  
  OkHttpClient client = builder.build();
  

  * Upgrading Okhttp to 4.5.0 or above can also solve this problem. * ft-sdk >= 1.6.13

  The SDK adapts to this issue in non-manual settings.

Error Data Loss Crash Type Data¶

• Confirm if other third-party SDKs with Crash capture functionality are used at the same time. If so, the SDK initialization method should be placed after other SDKs.

Missing Field Information in Data¶

User Data Field¶

• Confirm that the user data binding method is called correctly. In debug mode, you can track this issue through logs.

  [FT-SDK]FTRUMConfigManager com.demo D  bindUserData xxxx
  
  ///---> Your data operation <-----
  
  [FT-SDK]FTRUMConfigManager com.demo D unbindUserData
  

Missing Custom Parameters or Numerical Errors¶

• Confirm that FTRUMConfig.addGlobalContext, FTLoggerConfig.addGlobalContext are called in the correct scenarios. These are suitable for data that does not change during an application cycle, such as application channel providers, different Flavor attributes, etc. If dynamic scenarios need to be responded to in real-time, use the manual RUM and Log interfaces.
• In debug mode, check the [FT-SDK]SyncTaskManager logs to verify the correctness of custom field parameters.

Lag Issues When enableConsoleLog is Enabled¶

If lag occurs, it may be due to the large amount of data collected by the log. The principle of FTLoggerConfig.enableConsoleLog is to capture android.util.Log, Java and Kotlin println. It is recommended to adjust the FTLoggerConfig configuration parameters sampleRate, logPrefix, logLevelFilters as needed to eliminate or alleviate this problem.

Okhttp EventListener Fails After Integrating SDK¶

After Plugin AOP ASM is inserted, eventListenerFactory will be added to OkHttpClient.Builder() in the original project code, which will overwrite the original eventListener or eventListenerFactory.

Solution:

• ft-sdk < 1.4.1

  Disable the automatic Plugin AOP setting FTRUMConfig setEnableTraceUserResource(false), and customize a CustomEventListenerFactory that inherits FTResourceEventListener.FTFactory, and use custom method for integration.

• ft-sdk >= 1.4.1

  Customize a CustomEventListenerFactory that inherits FTResourceEventListener.FTFactory, and customize the ASM-written eventListenerFactory by setting FTRUMConfig.setOkHttpEventListenerHandler.

• ft-sdk >= 1.6.7

  The SDK adapts to this issue in non-manual settings.

TraceID Missing or Not Matching Trace Propagation Header¶

When collecting complete request data, information usually needs to be obtained from both Interceptor and EventListener. To effectively associate these two parts of data, the SDK needs to use a unique ID to concatenate the same network request. However, before version 1.6.10, this ID was the same in the same request, which could cause data confusion or loss in high concurrency scenarios. Since version 1.6.10, you can call FTSDKConfig.setEnableOkhttpRequestTag(true) or explicitly add ResourceID to the Request to distinguish unique identifiers for each request, avoiding interference issues between the same requests. For setup, refer to here.