topic Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null in Talend Studio

tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

igoralcantara — Wed, 09 Jul 2025 15:07:33 GMT

Good day Qlik Community,

I am working with a job whose schema was provided by Qlik Learning. All other pieces work fine but this one.

Basically I have a Data Preparation job in Talend Cloud (Demographics) which uses only one semantic type: US State Code. The job runs perfectly in the cloud. However, when I call it in Studio, it fails.

I have all the modules installed on Studio and I do have the latest version of Studio installed. I have a Windows OS.

The error I get is this one:

Exception in component tDataprepRun_1 (Process_Data)

java.lang.NullPointerException: Cannot invoke "org.talend.dataquality.semantic.snapshot.DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

I also attached a few images.

Any tip on how to fix this?

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

Denis_Segard — Wed, 09 Jul 2025 19:09:03 GMT

Hello,

What version of Talend Studio do you use ?

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

igoralcantara — Wed, 09 Jul 2025 19:23:40 GMT

I have the latest version.

Version: 8

Build id: 20250521_1150-patch

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

igoralcantara — Wed, 09 Jul 2025 21:51:06 GMT

I believe the problem is with my Talend Studio. I see some strange behavior. For example, I am not able to connect two components, when I right click and select Row > Main, nothing happens.

If I type the name of a component in the canvas area and double click on it, nothing happens. The only way to add a component is to type on the pallet and drag it.

Some jobs work fine. For example, I am able to read data from a file and insert the values in Snowflake. Some other, do not.

I tried to uninstall Java, uninstall Talend, restart Windows and reinstall them. Same thing.

Any guesses?

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

Denis_Segard — Thu, 10 Jul 2025 06:36:24 GMT

Did you check the file .log in the folder <WORKSPACE_FOLDER>\.metadata ?

Is there some errors / warnings ?

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

igoralcantara — Thu, 10 Jul 2025 14:54:03 GMT

Yes. I uninstalled and reinstalled Studio and even before doing anything, I see these messages in the log. It says MacOS even tough I have a Windows and I have installed the Windows version.

Command-line arguments: -os win32 -ws win32 -arch x86_64

!ENTRY org.eclipse.jdt.launching.macosx 4 0 2025-07-10 10:32:31.393
!MESSAGE FrameworkEvent ERROR
!STACK 0
org.osgi.framework.BundleException: Could not resolve module: org.eclipse.jdt.launching.macosx [20]
Unresolved requirement: Require-Capability: eclipse.platform; filter:="(osgi.os=macosx)"

!ENTRY org.talend.platform.logging 2 0 2025-07-10 10:32:47.156
!MESSAGE 2025-07-10 10:32:47,156 WARN org.talend.themes.common.ImagesMapping - Duplicate image defination in: org.talend.themes.common, Src: SourceImageBean [bundleName=org.talend.metadata.bridge.ui, imagePath=icons/import_action.gif, lifeCycle=null]

!ENTRY org.talend.platform.logging 1 0 2025-07-10 10:33:34.710
!MESSAGE 2025-07-10 10:33:34,710 INFO org.talend.commons.exception.CommonExceptionHandler - org.talend.commons.utils.network.TalendProxySelector:-Dtalend.studio.proxy.excludeLoopbackAutomatically=true, adding missing loopback addresses into http.nonProxyHosts: [localhost, 0:0:0:0:0:0:0:1, 127.0.0.1]

After running the job, the log shows this error:

!STACK 0
java.lang.Exception: [ERROR] Failed to execute goal on project beans: Could not resolve dependencies for project org.example.igor_talend.bean:beans:jar:8.0.1: Failed to collect dependencies at org.example.igor_talend.code:routines:jar:8.0.1: Failed to read artifact descriptor for org.example.igor_talend.code:routines:jar:8.0.1: The following artifacts could not be resolved: org.example.igor_talend:code.Master:pom:8.0.1 (absent): Cannot access central (https://repo1.maven.org/maven2/) in offline mode and the artifact org.example.igor_talend:code.Master:pom:8.0.1 has not been downloaded from it before. -> [Help 1]

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

Dave_Simo — Thu, 10 Jul 2025 21:00:03 GMT

Hello @igoralcantara

I think your error may occur when there are missing jar files on the Talend environment for the requested action (build, launch, publish, guess schema...). To fix the problem, apply the following method :

Go to the Window menu and choose Preferences.
On the right side, click Maven.

Uncheck the Offline option (checked by default on a new Talend installation), then click Apply and close

Retry the failed operation. Talend will now download the missing jar files.

Best Regards

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

igoralcantara — Fri, 11 Jul 2025 12:47:30 GMT

Thanks! However, it did not work.

First I noticed that Maven only has the offline option for me.

When I unchecked and ran the process, I noticed Studio was in fact downloading a bunch of .jar files and that gave me hope, but I got the same error message as before:

Exception in component tDataprepRun_1 (Process_Data)

java.lang.NullPointerException: Cannot invoke "org.talend.dataquality.semantic.snapshot.DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

at org.talend.dsel.functions.custom.IsOfTypeUtility.isSemanticType(IsOfTypeUtility.java:60)

at org.talend.dsel.functions.custom.IsOfTypeUtility.evaluate(IsOfTypeUtility.java:28)

at org.talend.dsel.functions.custom.IsInvalid.call(IsInvalid.java:28)

at org.talend.maplang.el.interpreter.impl.function.ExprLangFunctions.call(ExprLangFunctions.java:45)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitStandardFunction(ExprEvalVisitorImpl.java:363)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitFunctionCall(ExprEvalVisitorImpl.java:351)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitFunctionCall(ExprEvalVisitorImpl.java:41)

at org.talend.maplang.el.parser.model.ELNode.accept(ELNode.java:482)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitChildren(ExprEvalVisitorImpl.java:500)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitBlock(ExprEvalVisitorImpl.java:113)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitBlock(ExprEvalVisitorImpl.java:41)

at org.talend.maplang.el.parser.model.ELNode.accept(ELNode.java:445)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitChildren(ExprEvalVisitorImpl.java:500)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitRoot(ExprEvalVisitorImpl.java:108)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitRoot(ExprEvalVisitorImpl.java:41)

at org.talend.maplang.el.parser.model.ELNode.accept(ELNode.java:443)

at org.talend.maplang.el.interpreter.impl.ExprInterpreterImpl.evalAsExprValue(ExprInterpreterImpl.java:199)

at org.talend.maplang.el.interpreter.impl.ExprInterpreterImpl.evalAsBoolean(ExprInterpreterImpl.java:107)

at org.talend.components.processing.functions.AbstractBaseFunction.isRecordMatchingFilter(AbstractBaseFunction.java:233)

at org.talend.components.processing.functions.AbstractBaseFunction.applyOnRecord(AbstractBaseFunction.java:171)

at org.talend.components.processing.functions.AbstractBaseFunction.transform(AbstractBaseFunction.java:156)

at org.talend.components.processing.functions.technical.Composite.transform(Composite.java:53)

at org.talend.components.dataprep.preparation.Preparation.transform(Preparation.java:50)

at org.talend.components.dataprep.processor.DataPrepProcessor.onElement(DataPrepProcessor.java:99)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:568)

at org.talend.sdk.component.runtime.base.LifecycleImpl.doInvoke(LifecycleImpl.java:87)

at org.talend.sdk.component.runtime.output.ProcessorImpl.onNext(ProcessorImpl.java:303)

at org.talend.sdk.component.runtime.di.AutoChunkProcessor.onElement(AutoChunkProcessor.java:38)

at igor_talend.process_data_0_1.Process_Data.tFileInputDelimited_1Process(Process_Data.java:1496)

at igor_talend.process_data_0_1.Process_Data.runJobInTOS(Process_Data.java:2463)

at igor_talend.process_data_0_1.Process_Data.main(Process_Data.java:1954)

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

Dave_Simo — Fri, 11 Jul 2025 16:00:32 GMT

Hello @igoralcantara

Since I don't use the tDataPrepRun component at all, I put the beginning of the error you are experiencing in ChatGPT and it provided me with some resolutions below that may be able to unblock you.

https://chatgpt.com/s/t_68713488f1b081918db18e221d78cede

Best Regards

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

igoralcantara — Fri, 11 Jul 2025 16:31:44 GMT

Thanks. I tried ChatGPT for this before and it got me the same answer. The problem is that the options does not exist. There is no Data Quality preference nor Semantic Type. The closest is this:

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

janyf — Fri, 18 Jul 2025 07:18:49 GMT

Have same issue , as this is part of mandatory certification , could someone from Qlik (talend) look at it ?

Exception in component tDataprepRun_1 (Process_Data)

java.lang.NullPointerException: Cannot invoke "org.talend.dataquality.semantic.snapshot.DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

at org.talend.dsel.functions.custom.IsOfTypeUtility.isSemanticType(IsOfTypeUtility.java:60)

at org.talend.dsel.functions.custom.IsOfTypeUtility.evaluate(IsOfTypeUtility.java:28)

at org.talend.dsel.functions.custom.IsInvalid.call(IsInvalid.java:28)

at org.talend.maplang.el.interpreter.impl.function.ExprLangFunctions.call(ExprLangFunctions.java:45)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitStandardFunction(ExprEvalVisitorImpl.java:363)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitFunctionCall(ExprEvalVisitorImpl.java:351)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitFunctionCall(ExprEvalVisitorImpl.java:41)

at org.talend.maplang.el.parser.model.ELNode.accept(ELNode.java:482)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitChildren(ExprEvalVisitorImpl.java:500)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitBlock(ExprEvalVisitorImpl.java:113)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitBlock(ExprEvalVisitorImpl.java:41)

at org.talend.maplang.el.parser.model.ELNode.accept(ELNode.java:445)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitChildren(ExprEvalVisitorImpl.java:500)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitRoot(ExprEvalVisitorImpl.java:108)

at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitRoot(ExprEvalVisitorImpl.java:41)

at org.talend.maplang.el.parser.model.ELNode.accept(ELNode.java:443)

at org.talend.maplang.el.interpreter.impl.ExprInterpreterImpl.evalAsExprValue(ExprInterpreterImpl.java:199)

at org.talend.maplang.el.interpreter.impl.ExprInterpreterImpl.evalAsBoolean(ExprInterpreterImpl.java:107)

at org.talend.components.processing.functions.AbstractBaseFunction.isRecordMatchingFilter(AbstractBaseFunction.java:233)

at org.talend.components.processing.functions.AbstractBaseFunction.applyOnRecord(AbstractBaseFunction.java:171)

at org.talend.components.processing.functions.AbstractBaseFunction.transform(AbstractBaseFunction.java:156)

at org.talend.components.processing.functions.technical.Composite.transform(Composite.java:53)

at org.talend.components.dataprep.preparation.Preparation.transform(Preparation.java:50)

at org.talend.components.dataprep.processor.DataPrepProcessor.onElement(DataPrepProcessor.java:99)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:568)

at org.talend.sdk.component.runtime.base.LifecycleImpl.doInvoke(LifecycleImpl.java:87)

at org.talend.sdk.component.runtime.output.ProcessorImpl.onNext(ProcessorImpl.java:303)

at org.talend.sdk.component.runtime.di.AutoChunkProcessor.onElement(AutoChunkProcessor.java:38)

at talend_test.process_data_0_1.Process_Data.tFileInputDelimited_1Process(Process_Data.java:4689)

at talend_test.process_data_0_1.Process_Data.runJobInTOS(Process_Data.java:7456)

at talend_test.process_data_0_1.Process_Data.main(Process_Data.java:6934)

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

vinodn1989 — Thu, 31 Jul 2025 19:49:52 GMT

Any luck with the solutions? Facing the same issue

Here is the log:

Starting job Process_Data at 14:03 31/07/2025. [statistics] connecting to socket on port 3631 [statistics] connected [FATAL] 14:03:27 qpresales.process_data_0_1.Process_Data- tDataprepRun_1 Cannot invoke "org.talend.dataquality.semantic.snapshot.DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null java.lang.NullPointerException: Cannot invoke "org.talend.dataquality.semantic.snapshot.DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null at org.talend.dsel.functions.custom.IsOfTypeUtility.isSemanticType(IsOfTypeUtility.java:60) ~[daikon-ee-dsel-8.5.4.jar:?] at org.talend.dsel.functions.custom.IsOfTypeUtility.evaluate(IsOfTypeUtility.java:28) ~[daikon-ee-dsel-8.5.4.jar:?] at org.talend.dsel.functions.custom.IsInvalid.call(IsInvalid.java:28) ~[daikon-ee-dsel-8.5.4.jar:?] at org.talend.maplang.el.interpreter.impl.function.ExprLangFunctions.call(ExprLangFunctions.java:45) ~[org.talend.maplang.el.interpreter-1.10.0.jar:?] at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitStandardFunction(ExprEvalVisitorImpl.java:363) ~[org.talend.maplang.el.interpreter-1.10.0.jar:?] at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitFunctionCall(ExprEvalVisitorImpl.java:351) ~[org.talend.maplang.el.interpreter-1.10.0.jar:?] at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitFunctionCall(ExprEvalVisitorImpl.java:41) ~[org.talend.maplang.el.interpreter-1.10.0.jar:?] at org.talend.maplang.el.parser.model.ELNode.accept(ELNode.java:482) ~[org.talend.maplang.el.parser-1.10.0.jar:?] at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitChildren(ExprEvalVisitorImpl.java:500) ~[org.talend.maplang.el.interpreter-1.10.0.jar:?] at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitBlock(ExprEvalVisitorImpl.java:113) ~[org.talend.maplang.el.interpreter-1.10.0.jar:?] at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitBlock(ExprEvalVisitorImpl.java:41) ~[org.talend.maplang.el.interpreter-1.10.0.jar:?] at org.talend.maplang.el.parser.model.ELNode.accept(ELNode.java:445) ~[org.talend.maplang.el.parser-1.10.0.jar:?] at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitChildren(ExprEvalVisitorImpl.java:500) ~[org.talend.maplang.el.interpreter-1.10.0.jar:?] at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitRoot(ExprEvalVisitorImpl.java:108) ~[org.talend.maplang.el.interpreter-1.10.0.jar:?] at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitRoot(ExprEvalVisitorImpl.java:41) ~[org.talend.maplang.el.interpreter-1.10.0.jar:?] at org.talend.maplang.el.parser.model.ELNode.accept(ELNode.java:443) ~[org.talend.maplang.el.parser-1.10.0.jar:?] at org.talend.maplang.el.interpreter.impl.ExprInterpreterImpl.evalAsExprValue(ExprInterpreterImpl.java:199) ~[org.talend.maplang.el.interpreter-1.10.0.jar:?] at org.talend.maplang.el.interpreter.impl.ExprInterpreterImpl.evalAsBoolean(ExprInterpreterImpl.java:107) ~[org.talend.maplang.el.interpreter-1.10.0.jar:?] at org.talend.components.processing.functions.AbstractBaseFunction.isRecordMatchingFilter(AbstractBaseFunction.java:233) ~[processing-functions-1.70.1.jar:?] at org.talend.components.processing.functions.AbstractBaseFunction.applyOnRecord(AbstractBaseFunction.java:171) ~[processing-functions-1.70.1.jar:?] at org.talend.components.processing.functions.AbstractBaseFunction.transform(AbstractBaseFunction.java:156) ~[processing-functions-1.70.1.jar:?] at org.talend.components.processing.functions.technical.Composite.transform(Composite.java:53) ~[processing-functions-1.70.1.jar:?] at org.talend.components.dataprep.preparation.Preparation.transform(Preparation.java:50) ~[dataprep-1.70.1.jar:?] at org.talend.components.dataprep.processor.DataPrepProcessor.onElement(DataPrepProcessor.java:99) ~[dataprep-1.70.1.jar:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] at org.talend.sdk.component.runtime.base.LifecycleImpl.doInvoke(LifecycleImpl.java:87) ~[component-runtime-impl-1.80.1.jar:?] at org.talend.sdk.component.runtime.output.ProcessorImpl.onNext(ProcessorImpl.java:303) ~[component-runtime-impl-1.80.1.jar:?] at org.talend.sdk.component.runtime.di.AutoChunkProcessor.onElement(AutoChunkProcessor.java:38) ~[component-runtime-di-1.80.1.jar:?] at qpresales.process_data_0_1.Process_Data.tFileInputDelimited_1Process(Process_Data.java:2305) [classes/:?] at qpresales.process_data_0_1.Process_Data.runJobInTOS(Process_Data.java:4082) [classes/:?] at qpresales.process_data_0_1.Process_Data.main(Process_Data.java:3560) [classes/:?] Exception in component tDataprepRun_1 (Process_Data) java.lang.NullPointerException: Cannot invoke "org.talend.dataquality.semantic.snapshot.DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null at org.talend.dsel.functions.custom.IsOfTypeUtility.isSemanticType(IsOfTypeUtility.java:60) at org.talend.dsel.functions.custom.IsOfTypeUtility.evaluate(IsOfTypeUtility.java:28) at org.talend.dsel.functions.custom.IsInvalid.call(IsInvalid.java:28) at org.talend.maplang.el.interpreter.impl.function.ExprLangFunctions.call(ExprLangFunctions.java:45) at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitStandardFunction(ExprEvalVisitorImpl.java:363) at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitFunctionCall(ExprEvalVisitorImpl.java:351) at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitFunctionCall(ExprEvalVisitorImpl.java:41) at org.talend.maplang.el.parser.model.ELNode.accept(ELNode.java:482) at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitChildren(ExprEvalVisitorImpl.java:500) at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitBlock(ExprEvalVisitorImpl.java:113) at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitBlock(ExprEvalVisitorImpl.java:41) at org.talend.maplang.el.parser.model.ELNode.accept(ELNode.java:445) at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitChildren(ExprEvalVisitorImpl.java:500) at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitRoot(ExprEvalVisitorImpl.java:108) at org.talend.maplang.el.interpreter.impl.ExprEvalVisitorImpl.visitRoot(ExprEvalVisitorImpl.java:41) at org.talend.maplang.el.parser.model.ELNode.accept(ELNode.java:443) at org.talend.maplang.el.interpreter.impl.ExprInterpreterImpl.evalAsExprValue(ExprInterpreterImpl.java:199) at org.talend.maplang.el.interpreter.impl.ExprInterpreterImpl.evalAsBoolean(ExprInterpreterImpl.java:107) at org.talend.components.processing.functions.AbstractBaseFunction.isRecordMatchingFilter(AbstractBaseFunction.java:233) at org.talend.components.processing.functions.AbstractBaseFunction.applyOnRecord(AbstractBaseFunction.java:171) at org.talend.components.processing.functions.AbstractBaseFunction.transform(AbstractBaseFunction.java:156) at org.talend.components.processing.functions.technical.Composite.transform(Composite.java:53) at org.talend.components.dataprep.preparation.Preparation.transform(Preparation.java:50) at org.talend.components.dataprep.processor.DataPrepProcessor.onElement(DataPrepProcessor.java:99) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.talend.sdk.component.runtime.base.LifecycleImpl.doInvoke(LifecycleImpl.java:87) at org.talend.sdk.component.runtime.output.ProcessorImpl.onNext(ProcessorImpl.java:303) at org.talend.sdk.component.runtime.di.AutoChunkProcessor.onElement(AutoChunkProcessor.java:38) at qpresales.process_data_0_1.Process_Data.tFileInputDelimited_1Process(Process_Data.java:2305) at qpresales.process_data_0_1.Process_Data.runJobInTOS(Process_Data.java:4082) at qpresales.process_data_0_1.Process_Data.main(Process_Data.java:3560) [statistics] disconnected Job Process_Data ended at 14:03 31/07/2025. [Exit code = 1]

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

igoralcantara — Thu, 31 Jul 2025 20:16:21 GMT

I got it to work. The data preparation in Talend Cloud provided had a bug that blocked it from being called from Talend Studio. Use the one attached instead.

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

jscantamburlo2 — Fri, 01 Aug 2025 23:00:13 GMT

Check 'Use dictionary' in the advanced settings to enable semantic dictionary usage on preparation steps.

Tested on Studio 8.20250730_0900-patch

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

igoralcantara — Mon, 04 Aug 2025 16:02:34 GMT

This solution does not apply here in this case, it just gives a different error message. I have provided the solution above.

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

chris_khalife — Wed, 13 Aug 2025 21:12:17 GMT

Hi Team,

Support is still actively investigating this issue, currently we do not have a proper reproduction scenario. For the job I have that was impacted, I found recreating the tDataPrep component worked in my case. However that seems to contradict Igor's solution where there were issues with Studio calling the specific preparation. If anyone has a reproduction scenario let me know, Support will still continue to actively investigate this issue on our end.

Best Regards,

Qlik Talend Support

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

igoralcantara — Thu, 14 Aug 2025 12:12:03 GMT

Thank you!

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

marksouzacosta — Mon, 18 Aug 2025 02:58:08 GMT

Hi @chris_khalife,

I have simple case that you can use to reproduce the error.

Sample data source: people-100000.csv
Downloaded from: https://www.datablist.com/learn/csv/download-sample-csv-files#people-dataset
Talend Studio: R2025-07v02

Steps:

1. Go to Talend Cloud Data Preparation > Data Sets and add a new data set for people-100000.csv. I have called it people-100000:

Sample view:

2. Go to Talend Cloud Data Preparation > Preparations add a new preparation called PeopleDataPrep for people-100000 dataset. This Data Preparation has only one rule, to remove invalid phones.
Click on the Phone column, add the Delete the rows with invalid cells. (exported version attached to this message):

3. Go to Talend Studio, create a new Job and add three blocks:
tFileInputDelimited -> tDataPrepRun -> tLogRow

tFileInputDelimited properties:

tDataPrepRun properties:

4. Run the job - error attached to this message.

Note:
We could run the Data Preparation for the very same file in Talend Cloud without any error.

Please let me know if you need any additional information.

Regards,

Mark Costa

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

Denis_Segard — Mon, 18 Aug 2025 06:53:45 GMT

Hello Mark,
Thanks for the details , unfortunately , I cannot reproduce the error

1. Do you reproduce the error when having only the 2 fist lines in the file people-100000.csv used by the component tFileInputDelimited ?

Index,User Id,First Name,Last Name,xxx,Email,Phone,Date of birth,Job Title
1,e09c4f4cbfEFaFd,Dawn,Trevino,Male,clintongood@example.org,360-423-5286,1972-01-17,"Teacher, primary school"

Could you execute the command below using the java used by Talend Studio and provide the output :
java -XshowSettings:all

Kind regards
Denis

Re: tDataPrepRun returning error DictionarySnapshot.getDQCategoryByName(String)" because "dictionarySnapshot" is null

Denis_Segard — Mon, 18 Aug 2025 08:41:20 GMT

NOTE : I was able to reproduce the error after having unchecked the option "Use Dictionary" :

But when it is checked and the "Dictionary version" selected , the job works fine ...

Kind regards
Denis