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I was trying to execute sample basic sparkstreaming example in Scala IDE, but I am getting below error:

Error: Could not find or load main class org.test.spark.streamExample.

Could anyone help me to sort out this please.

RightClick on your project and go to properties where you will find Scala Compiler, change target to jvm 1.7 based on your installation and also change Scala Installation dropdown based on version you have installed

Error: Could not find or load main class org.test.spark.SparkTest , Do not worry about that error, I had the same problem with Scala IDE. It seems that, for some reason, Scala IDE does not auto-detect the main  Re: Error: Could not find or load main class org.test.spark.SparkTest Ok, I'll try to make it step by step. This IS a problem of Scala IDE, who doesn't recognise your main class.

This Error May occur for two reasons: 1. When you did not write the main method in the scala program

def main(args: Array[String]): Unit = {
    println("TEst")
  }

2. When you add unsupported jar to the build path of the scala project Please check the above two scenarios.

Error: Could not find or load main class - Question, I'm getting the following error message: Error: Could not find or load main class In fact I get quite a few hits which I search in google for this, but  D:\sample>java Example Error: Could not find or load main class Example Caused by: java.lang.ClassNotFoundException: Example Solution To avoid this error, you need to specify the absolute (including packages) name of the .class file (just name) which is in the current directory.

If your scala file imported from external, check the very top of the code in Main file, just confirm that the package name matches yours.

Re: Spark Job Failing "Could not find or load main class org.apache , Solved: Hi, When I'm running Sample Spark Job in client mode it executing and when I run the Spark Job Failing "Could not find or load main class org.apache.​spark.deploy.yarn. Error message: Can you check your, spark-env.sh file. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Error: Could not find or load

Error: Could not find or load main class this same problem i have faced for more than 1 days, i have reinstalled IDE(IntelliJ) and i have changed JDK 11 to JDK 8 but nothing was working but finally i resolved it by adding these below two dependency

Solution:

we have to add both dependency spark-core and spark-sql in build.sbt Paackage

1).

libraryDependencies += "org.apache.spark" %% "spark-core" % "2.4.0"

2).

libraryDependencies += "org.apache.spark" %% "spark-sql" % "2.4.0"

i have copied these both dependency from these links

https://mvnrepository.com/artifact/org.apache.spark/spark-core_2.12/2.4.0

https://mvnrepository.com/artifact/org.apache.spark/spark-sql_2.12/2.4.0

How to solve Error: Could not find or load main class?, Error: Could not find or load main class get this error. Later I could not run the program. Furthermore, check your .classpath file, it should have correct paths to your main. Finally How come nat=2 or 1 is written in the example files. Que 3​. Usually, the mistake that users make which leads to the Java could not find or load main class is the class name that they give as an argument is wrong or, if the class name is correct, the form is wrong. Here are the possible ways you can get this wrong:

The main reason for such error is that some compilation errors may exists, it could be some any build path related issue or some code issue. Check the issue in problem tab .

Other than this , check Scala Library version in your POM and Scala Installation version in Scala compiler

Error: Could not find or load main class org.test.spark - Scala, Error: Could not find or load main class org.test.spark.SparkTest. For example, in your case you should write "org.test.spark.SparkTest". Eclipse “Error: Could not find or load main class” (48 answers) Closed 6 years ago . Have Googled extensively on this error, but I can't seem to fix the problem.

Could Not Find or Load Main Class Error, In this tutorial, we'll discuss the probable reasons for failure to find the main class. Also, we'll see how to fix them. 2. Sample Program. Now when I try to run sdkmanager to install Android SDK, I get this error: "Error: Could not find or load main class com.android.sdklib.tool.sdkmanager.SdkManagerCli" I have tried reinstalling Flutter sdk and the sdkmanager with no luck. Here is Flutter Doctor's output: sdkmanager error:

Error: Could not find or load main class org.test.spark - iOS, Error: Could not find or load main class org.test.spark.streamExample - spark-​streaming. I was trying to execute sample basic sparkstreaming example in Scala IDE, but I am getting below error: Error: Could not find or load main class  If you are getting "Error: Could not find or load main class XXX", where XXX is the name of your main class while running Java program then do this to solve that error: 1) If you are running Java program right from the directory where .class file is and you have CLASSPATH environment variable defined then make sure it include current directory.

PolyBase Revealed: Data Virtualization with SQL Server, Hadoop, , Data Virtualization with SQL Server, Hadoop, Apache Spark, and Beyond Kevin Feasel Without a resource manager, you get this generic-looking error message with the OPTION(FORCE EXTERNALPUSHDOWN) hint, check the definition of Could not find or load main class org.apache.hadoop.mapreduce. v2.app. For the Love of Physics - Walter Lewin - May 16, 2011 - Duration: 1:01:26. Lectures by Walter Lewin. They will make you ♥ Physics. Recommended for you

Comments
  • Possible duplicate of Scala project won't compile in Eclipse; "Could not find the main class."
  • Nice solution. Worked for me :)
  • Second reason could be the reason for most of the cases for beginners