ArgumentNullException in Build and create the skillset in azure search

Mithila Lishan 136

This is the link which I am following ([https://learn.microsoft.com/en-us/azure/search/cognitive-search-tutorial-blob-dotnet#build-and-create-the-skillset][1])

I am implementing console application for azure search. when my code is run it is stopped at the below mentioned object creation

SearchIndexerSkillset skillset = new SearchIndexerSkillset("demoskillset", skills)
{
Description = "Demo skillset",
CognitiveServicesAccount = new CognitiveServicesAccountKey(cognitiveServicesKey)
};

its says ArgumentNullException

I checked constructor of SearchIndexerSkillset class but it has only definition, no method body, is it the problem for this error ?
or is there any issue please help me !

Ryan Hill 25,981 Reputation points Microsoft Employee

2021-09-16T11:12:10.917+00:00

Hi @Mithila Lishan ,

Where did you set skills? According to the doc, if you're getting ArgumentNullException, you didn't pass the skills object to CreateOrUpdateDemoSkillSet.

Mithila Lishan 136

Hi @Ryan Hill first I thank for your reply

Skills is a list of skills, I have created sperate static methods for each skills and, I added those skills to the list skills like below.

// Create the skills  
Console.WriteLine("Creating the skills...");  
OcrSkill ocrSkill = CreateOcrSkill();  
MergeSkill mergeSkill = CreateMergeSkill();  
EntityRecognitionSkill entityRecognitionSkill = CreateEntityRecognitionSkill();  
LanguageDetectionSkill languageDetectionSkill = CreateLanguageDetectionSkill();  
SplitSkill splitSkill = CreateSplitSkill();  
KeyPhraseExtractionSkill keyPhraseExtractionSkill = CreateKeyPhraseExtractionSkill();  
  
// Create the skillset  
Console.WriteLine("Creating or updating the skillset...");  
List<SearchIndexerSkill> skills = new List<SearchIndexerSkill>();  
skills.Add(ocrSkill);  
skills.Add(mergeSkill);  
skills.Add(languageDetectionSkill);  
skills.Add(splitSkill);  
skills.Add(entityRecognitionSkill);  
skills.Add(keyPhraseExtractionSkill);  

am I wrong ?

Ryan Hill 25,981 Reputation points Microsoft Employee

2021-09-23T03:52:12.607+00:00

Apologies for the late reply @Mithila Lishan , what is cognitiveServicesKey set to? Can you provide a full stack trace of the exception?