classpath file: IntelliJ IDEA will write a long classpath into a text file. 5) because changes were made on dependeny management of maven. By default, the working directory is the root directory of the project. Name the new project and change its location if necessary. io package for two reasons: it's intended for internal use of reflection code (e. Click on the module un want to build. // By default the file write will replace. In every example on internet they are doing: import scala. If its first argument’s type is a subtype of its second argument’s type, it returns true. Alternatively, in the editor gutter, click the icon and select Run 'name'. For some reason it was a permissions thing - I had to do a sudo chown me:me on all the files it couldn't "find". 11. append(path, "two more\nlines\n" ) println(os. May 26, 2024 · In the New Scala Worksheet window, type the name of the file and click OK. May 29, 2016 · "org. On the left panel, select Scala. The most interesting part of the user interface is the IntelliJ IDEA editor Oct 16, 2018 · I'm trying to code in the simplest way a program to count word occurrences in file in Scala Language. -server -Xmx1536M -Dsbt. For more information about the syntax used in file templates, see Syntax. * Step 2: Check the file permissions for the project files. Issue-2 In your pom add the following execution beneath the maven-scala plugin. 12 that works with JDK 11. May 3, 2014 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand If you want to mix Scala and Java source code, simply add a java folder inside main or test. {universe => ru} Feb 22, 2024 · For a general overview of how to create new projects in IntelliJ IDEA, refer to Create a new project. remote. But nothing worked. In the list that opens, select Java Class Diagram. 2. If you set this to your default encoding, this may work as well. sbt worked fine. * Step 1: Make sure that the project files are visible in the Project view. class. Apr 7, 2015 · 1. apache. Check the screen shot: edited Dec 17, 2014 at 4:58. You can import members inside a class: import scala. Feb 25, 2016 · Anyway, try cleaning your Catalyst sub-project then rebuild the autogenerated sources. ClassTag instead. Sep 22, 2023 · I'm unable to use sbt or run tests from within IntelliJ on an existing Scala project. java; test Jan 27, 2016 · The implementation of the ZipArchive abstract file backend https://github. Press Shift F10 to execute the application. I have several projects running in Intellij. Assuming this is your first time creating a Scala project with IntelliJ, you’ll need to install a Scala SDK. Ctrl+Shift+Alt+S). What happened After opening the flutter project on Android Studio, this exception was reported, and New Flutter Prokect was not displayed in the File menu. [info] All tests passed. val r = new Random. p12 format API key from /resources, writes it to /tmp, and then uses the file path string as an input to a spark-google-spreadsheets write. def printRandom {. jar files. U can see the modules. When I look in the Project Structure -> Libraries folder I see that a scala library had a small red box on it (see screenshot) Open up IntelliJ and click File => New => Project. the foo. 1 Java OpenJDK 13. x which finally included scala libs. (optional) Once the folder is generated then right-click "resources" directory, then select "New > Directory" and create an "images" directory. It works great. Navigate to clean -> clean:clean and double click it. scala> import scala. foreach{p => p. Dec 8, 2014 · For Scala 2. In addition to these Scala-specific types, Java reflection is also unable to recover runtime type info of Java types that are generic at compile-time; a restriction that carried through to runtime reflection on generic types in Scala. For pure Scala your code seems working fine, the not found: value os could be a compile/import issue with the IDE you are using. Note: If you want to open an existing Scala project, you can click Open when you start IntelliJ. noformat=true -jar C:\Users\pajor. However I have red in some tutorials that you can also run the current file by right clicking on it and choosing run or debug. com Open up IntelliJ and click File => New => Project. Scala features. 8, jdk1. Jan 23, 2012 · Whenever I try to run the Scala Console in my current project, the process terminates after about a half second with the following exception: Exception in thread "main" java. This section provides descriptions of the configuration-specific items for Scala console, as well as options that are common for all run/debug configurations. Go to. supershell=false -Didea. If you want to learn more about it, refer to the Configuring the IDE section. Sep 10, 2019 · Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand Sep 30, 2016 · I had faced this issue when I had to downgrade my projects Scala version to use a dependency that was compiled in a lower Scala version and could not resolved it even after I made sure JDK and all other dependencies are compatible with the downgraded Scala library version. Mar 16, 2019 · I tried in stackoverflow to find "How to crate . 10. 4. On the Scala Compiler page, choose the incremental compiler such as Zinc, which is a standalone version of the incremental compiler or the IntelliJ IDEA native one. io. Creating the Project. Deprecated. m2/repository may evict this problem. Below, we define a method which uses Scala reflection to get the runtime types of its arguments, and then checks the subtyping relationship between the two. 2 and sbt from the command line to build. IntelliJ IDEA generates a UML diagram for classes and their dependencies. ) Open the Project view in the IDE. In my case java-11 was selected by default, after i changed to jdk-8, it worked. The object ClassManifest defines factory methods for manifests. Setting the JDK_HOME environment variable along with PATH to point to java 8 worked in my case. you can set following: -Xss8m. file:/// is let Spark know to read the data from local file system. remove one of the added library . In the menu select: Run -> Edit Configurations Press the "+" (⌘N also works on the Mac in this dialog) Select "Scala Script". Trying to downgrade to SDK 1. Feb 12, 2010 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 9. Adding source JARs and a documentation JAR or URLs is a good idea, too. Run Scala code using Scala worksheet. Jul 30, 2014 · 4. size) // prints: 4. May 26, 2024 · Renaming in Java files is implemented with an inlay hint. In the right-hand part of the dialog, on the 9. ivy and . Unless otherwise stated, all the code examples in this page assume you are using Scala 3. It's a bit inconvenient, but it works. To learn more about how to use IntelliJ IDEA's editor in general, refer to Using code editor. Getting the current working directory has usually nothing to do with Scala's reflection capabilities. May 14, 2013 · This tells the scala compiler that all files that it reads (i. 8. The JAVA_HOME, JDK_HOME, SCALA_HOME and SBT_HOME variables are set. Name the project HelloWorld. managed=true -Dfile. Nov 26, 2021 · 1. 5 community edition. Source import scala. scala. sbt. Alternatively, in the main menu, go to File | New | Project. you must manually add manually. Finall! Thanks a lot tro everyone for the useful input! scala. Jan 13, 2019 · Intellij IDEA > Preferences > Build,Execution,Deployment > Build Tools > sbt. You will be able to preview the full command line if it was shortened using this method, not just the classpath of the temporary classpath. On the Welcome screen, click New Project. Expand module, expand the life cycle, click on install. Annotations. It seems to be working now. In the Project tool window, right-click a package for which you want to create a diagram and select Diagrams | Show Diagram Ctrl Alt Shift 0U ). Here's the standard api provided for file access: scala. My location for the . ClassNotFoundException: GUI. lang" is Java Modules thing, which started in Java 9. Mar 29, 2024 · Solution 1) Using the concise “fromFile” syntax. string2codec import scala. So, go to Run - Edit configurations, then find your run configuration, edit it, and see what the field "Working directory" contains. m2 directory was pointed to the wrong path. Jan 3, 2013 · I've tried resetting Intellij to defaults, when that didn't work, I tried removing the Intellij installation and its related folders, excluding . 2. IntelliJ IDEA lets you use different Scala intention actions, inspections with quick-fixes, as well as convert your code from Java to Scala, and use different Scala templates while working in the IntelliJ IDEA. File object WordCounter { val SrcDestination: String = ". If it does not work please create a ticket on the bugtracker (with the Feb 11, 2024 · Press Ctrl Alt 0S to open settings and then select Build, Execution, Deployment | Compiler | Scala Compiler. change the scope of scala-library dependency from provided to "compile" (or remove the scope). It is intended for use by the compiler and should not be used in client code. May 26, 2024 · The user interface for Scala looks similar to the standard IntelliJ IDEA UI. In the editor start renaming a parameter, a method, or other code element. As a result, a file with . Here's a snippit that reads a binary google . May 26, 2024 · The default bundled Maven version is 3. 10, a new reflection library was introduced not only to address the shortcomings of Java's runtime Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Sep 21, 2019 · error: scala. I think that your problem is that scala library is not in your runtime classpath. IntelliJ IDEA supports a fully-functional integration with Maven that helps you automate your building process. I have set up a gatling project in Intellij IDEA 14. For 1: Import the Scalatest library with the following: libraryDependencies += "org. [info] Run completed in 2 seconds, 947 milliseconds. IntelliJ IDEA will display in the gutter. In Scala 2. things work fine when I start the sbt (version 0. jar file of scala maven project created in Intellij". sc extension opens. Thread. os. write. Dec 16, 2014 · 6. JRE Aug 23, 2013 · Issues compiling scala files. Created August 23, 2013 13:06. file, this works with Scala 2. I have the Scala plugin installed and the project configuration seems to be correct (since I do not see and inline errors and compile works fine). File: link. 12: reflect. Using getClass. The most confusing thing here is that it seems that this is different from Scala Compiler Server ( for which I tried a lot of combinations and even tried changing the underlying JDK and what not ) but the key was that that the sbt shell Jun 17, 2019 · I have multi-project build in Intellij and I have a separate directory for files:-Intellij project ---project-1 ---project-2 ---project-3 ---test-files And I want to write a file to the files directory without defining an absolute path because I am going to run it on the cluster, where I do not know build path. is hidden from scala doc) This is library is considered experimental and should not be used unless you know what you are doing. Update: Reading a file with Try, Success, and Failure. Aug 12, 2015 · 4. Project name can be anything. This is a situation that will come up in team development. On the "Please select the desired technologies" page, choose Scala. My setup seems basic. sbt to use the correct dependency; and. " When we create the project, we’ll install the latest version of Scala. Writing files to disk with OS-Lib. It seems that the compiler cannot read the version of the scala-compiler jar. If you have Java 8 and Java 9, and you would like to keep both, you can set your environment variable JAVA_HOME to the Java 8 path. To the right of the Scala SDK field, click the Create button. Scala Standard Library 2. So far I have these piece of code: import scala. 0_ 251 and Scala 2. jetbrains. 3. So I have to read lines from filejust a trivial I/O operation. 0 [as well as] org. In either case, IntelliJ “knows” that projects that have a build. Please use 'RunFirrtlTransformAnnotation(new firrtl. sbt file in the project’s root directory can be imported using SBT. NoClassDefFoundError: scala/Option Jan 10, 2024 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 3 directory) Jul 21, 2018 · upgrade the version scala-maven-plugin to 3. When I tried to compile a coursera project i Feb 5, 2019 · Remark on scala. 0) use scala. I used the scala-simple-archetype. base/java. 11 in the current configuration you're asking SBT to Jul 6, 2014 · When an application is executed from IntelliJ, this working directory is configured in the Run configuration used to launch the application. Apr 17, 2019 · One Issue can be that you use the wrong Java-Version (9/10) try to change it to Java 8 (1. 10" % Test. jar). heap size (Mbytes) Increase this property to a higher value. Source (companion Object, not Class See full list on baeldung. Random. All I did to fix it was re-point IntelliJ to the right . To set another compiler library go to Project Structure/Facets/Scala facet of your module and select a suitable library. log. in intellij idea files -> project structure -> library tab -> scroll and search for the extra added library -> press the '-' icon at top left side of the dialog box. 1. com/scala/scala/blob/2. Intellij does a good job of supporting mixed Java / Scala projects. jar and scala-library. After that please make sure to apply the changes and re-run the program. Aug 8, 2014 · I'd like to play around with reflection in scala (2. Handling exceptions. e. jps. Feb 22, 2023 · 1. The API can be used in macros as well as May 30, 2017 · 0. while compiling: <no file>. java:834) The notion of "java. 1 (set IntelliJ sbt options to OpenJDK) sbt 1. 8) in IntelliJ (File => Project-Structure). You can also select the compilation order in which code should be compiled. I need Scalaj as a new depenency. Jun 25, 2024 · View diagram on a package . incremental. On the right panel, select IDEA. . Source Nov 1, 2020 · When I hover over the libraryDependencies in the build. For example the GUI file, which has no errors and is a totally self contained hello world style for testing this error: Exception in thread "main" java. template. 13) and import scala. I'm trying to load some data from HDFS into HBase as follows: MutationSerialization. If you don't want to specify the file:// change 'fs. // the openOptions parameter takes a Sep 17, 2018 · 1. I'm using IntelliJ IDEA 13 (Community Edition) with the Scala plugin. Your best bet is to do an sbt clean, ensuring that the offending files have disappeared, and restarting with the JAVA_TOOL_OPTION as suggested above. 11, if getLines doesn't do exactly what you want you can also copy the a file out of the jar to the local file system. May 6, 2011 · My imports were not being resolved because IntelliJ pointed to wrong . – Sep 20, 2019 · error: scala. I didn't try to delete any jar files though because I didn't wanna mess it up further. Apr 8, 2024 · Run a Scala application via Intellij IDEA . Then right. _ Apr 24, 2020 · I am new to Scala so any help would be really appreciated. Why IJ did not pick it up is uncertain so this is basically a hack. x/src/reflect/scala/reflect/io/ZipArchive. I have a very simple scala project setup I'm using to explore the language. version=1. 0 and I have a JDK of version 13). getName()); Inside the dir directory I have two folders as follows: Now when I call the code above I see the following exception: Mar 18, 2024 · In the latter case, IntelliJ will guide us through specifying where our project should be set up. I found: some says in intellij at right hand side there will be two options, one is maven, one is ant. scalatest" %% "scalatest" % "3. @ deprecated. If you are using tools like maven or sbt, maybe the dependency is marked as provided instead compiled. As with Java, you can import members at the top of a class definition, and then use the imported resource later in your code: def printRandom {. Steps: File > New Project > Create project from scratch. file. xml at the Maven page. defaultFS' value to 'file:///' , then by default Spark will look up data from local file system. org. 13. Creating a module library and adding it to the module dependencies: Open the Project Structure dialog (e. Apr 5, 2018 · Saved searches Use saved searches to filter your results more quickly Jul 14, 2013 · Again Scala basic operations are making my life painful :D. Asking for help, clarification, or responding to other answers. If you are not using these tools, add "scala-library. If you are using scala IDE for eclipse, i suggest you to try Intellij. Click on maven. xml; src main scala com/my-package/… *. With these steps, you can quickly and easily get IntelliJ to show your project files again. When you use _2. Feb 11, 2024 · The original classpath is defined in the manifest file as a class-path attribute in classpath. Specify a name such as "resources". getResource. Add your code. scala never releases the Feb 26, 2020 · I can confirm the fix is validation dependencies. write (Array (1,2,3) map ( _. Next, click the + and choose your Scala SDK version to add. After that, everything runs ok. Feb 11, 2024 · Create: Run | Edit Configurations | | Scala REPL. From the list on the left, select Scala. File("filename"). target includes generated/built files, such as . Thank you very much! (Some information: I have the Scala plugin and sbt installed (latest version); the sbt file specifies scala 2. Here are more reasons not to use scala. May 2, 2012 · Currently the only way to register a scala distribution is to create a new project. My main files stopped running. Here's how to fix it. Object in compiler mirror not found. Oct 8, 2014 · I'm running IntelliJ 13. Jun 21, 2019 · Problem I'm extending an existing performance test project, which is a Scala project that uses Gatling for simulations and Maven as a build tool. First, go to: File->Settings->Build, Execution, Deployment->Build Tools->Maven Dec 17, 2014 · Yes. You can figure out how to change your IntelliJ configuration to use JDK 8 or use Scala 2. intellij-idea. I am not sure of any other IDE that better supports this. May 26, 2024 · In the Save File as Template dialog, specify the new template name, extension, and edit the body if necessary. // to specify in detail how the write should take place. 0. When I look in the Project Structure -> Libraries folder I see that a scala library had a small red box on it (see screenshot) What does the red box mean? How could I resolve this? Oct 10, 2020 · CompilerAnnotation is deprecated since FIRRTL 1. spark. David Pollak’s “using” control structure. Maybe it is corrupted. reflect. getResource method which returns a URL. This was all files in project and target . Example structure: pom. I've tried a couple of different times to setup the project in IntelliJ and it seems configured correctly Nov 11, 2016 · 1) You need to create a Project in IntelliJ IDEA. It is an old question, but I still need it needs some update. Multiple fromFile methods. // an existing file with the new data. Change. Let’s start by Jan 5, 2011 · val file: FileOps = Path ("file") // write bytes. encoding=UTF-8 -Dsbt. File -> Settings -> Build, Execution, Deployment -> Compiler -> Build process. * Step 3: Reindex the project files. 7. g. sbt folders. run(Thread. 6. If you have installed any other java versions in your machine, you can configure it under 'project SDK' in following path "File -> Project Structure -> Project Settings -> Project -> Project SDK". You can place an import statement almost anywhere inside a program. scala-lang:scala-library. 4 community edition. runtime. 3) Then go to Libraries on the left side. For me I upgraded my SpringBoot version which changed my spring-kafka-test version which intern included kafka 2. ) From the File menu just choose Project structure. universe. 3 (set IntelliJ sbt-launch. jar" to your library directory. % brew install coursier/formulas/coursier && cs setup % cs setup Checking if a JV Jan 19, 2014 · The project is set to use Java 8, but the scala maven plugin uses Java 11. You can also use os. sbt file it doesn't seem to recognise the sbt syntax: I cannot import the library into my class file and the project wont build: I'm new to Scala and I'm simply trying to create a basic hello world project but I can't seem to get past this frustrating issue. . 3 - scala. Open up IntelliJ and click File => New => Project; On the left panel, select Scala. Oct 21, 2018 · So as to use the SBT structure for construction, I had to go to File -> Settings -> Build, Execution, Deployment -> Build Tools -> sbt and check "Use auto-import" and "use sbt shell for build and import". It makes no sense and I'm pretty frustrated that the IntelliJ Feb 12, 2010 · The following combination and steps worked for me. If you are using Intillj then you could try on the right side of the IDE click the SBT from the list of vertical tabs and reload all modules. Try to redownload it or to use another version. append to add more to the end: Scala 2 and 3. To fix the problem go to project structure in intellij and go to global libraries It should be like this. IntelliJ Version: IntelliJ Idea 2018. Extend your test class with the necessary trait. Feb 7, 2020 · This is inconsistent with what the stack trace is showing: at java. 3\config\plugins\Scala\launcher\sbt Aug 16, 2017 · @Gregor I feel JDK11 is used by IntelliJ by default. I've got JDK, Scala, SBT installed. If I run the test thought the sbt console in IntelliJ I don't have any problem either. toByte)) // another option for write is openOptions which allows the caller. *. Jul 30, 2011 · Here is a concise one-liner using reflect. Solution 2) Properly closing the file. Automatically closing the resource. File name: If necessary, specify a name for the file created from this template. refelct. The library dependencies were picked up by IDEA. jar option to sbt 1. Again, we must go into preferences and enable the . In this tutorial, we’ll learn different approaches to reading a file from the resources folder in Scala. close} Apr 4, 2017 · 20. Press Ctrl+Shift+X to send your code selection from the editor to the Scala console and Ctrl+Enter to evaluate code in the console. Grant Lewis. Then navigate to the "Spark Project Catalyst" in the "Maven Project" tab. The exception is from the compiler that IntelliJ employs, hence you need to change the compiler build process' heap size. reflect packages for such mundane tasks. FatalError: bad constant pool index: 0 at pos: 7817. You should use isFile or isRegularFile instead of exists since exists don´t take in account if is a File or a Directory and can mislead the application in case there is a directory with the same name. The reflection API provides a more complex and comprehensive view on the structure of the code. But with intellij fixes like this are unfortunately sometimes required. lines(path). In the left-hand pane of the dialog, select Modules. IdeaIC2019. If I create a new SBT project, after initial sbt refresh, I get this: The thing compiles and runs fine, even if I add dependencies, but the file itself shows tonnes of errors. Apr 8, 2024 · Scala features . import org. You need to do two things to fix your code: Update build. 12. LowFirrtlEmitter)' instead. read. Dec 7, 2021 · Solution. Codec. 8, set and export JAVA_HOME again, then remove all repositories under ~/. Then select your Script file in this dialog. ServerException Error May 6, 2023 · Files. scala) are encoded in UTF-8. I recently upgraded to IntelliJ 14, then added Scala support. Overall, Scala resources work just the same way as Java resources do. Follow. May 3, 2015 · So I have made a Maven Scala Project in IntelliJ. so this caused the confusion with the signature. Some GUI elements will appear that allow you to tell IntelliJ how to find Dec 4, 2013 · The next thing you should do is define a library (global or project-specific; I use global) that holds the Scala library and compiler JAR files (at a minimum, that's scala-compiler. It provides a view of Typed Abstract Syntax Trees and their properties such as types, symbols, positions and comments. You could use from_json in Spark. Now you have two options. error: scala. sql. Nov 22, 2013 · 5. Leave all settings as default. – Lakshman Battini. Instructions. Overview. MissingRequirementError: object java. Based on the file configuration, it is treated either as a Scala worksheet or as Ammonite. ← previous next →. Simply right-click on your project directory (the very top folder), then select "New > Directory". scala 2. lang. functions. To do this in IntelliJ, go to View -> Tools Window -> Maven Projects. (Since version 2. I am using IntelliJ IDEA Version: 2020. jar. 2) by following the example in this tutorial. during phase: globalPhase=<no phase>, enteringPhase=<some phase>. You can easily create a new Maven project, open and sync an existing one, add a Maven support to any existing IntelliJ IDEA project, configure and manage a multi-module project. After that remove all the scala SDKs by hitting the - mark. internal. Click the gutter icon or press Alt+Enter and apply a suggestion. scala; java com/my-package/… *. By default, IntelliJ IDEA prompts the user to enter a name when adding the file. Rename code in place with inlay Mar 13, 2018 · By default, classes are compiled against the bootstrap of the platform that javac shipped with (The low code that the JVM needs to run). Leaving files open. m2 directory and update it. You can read about pom. And now I get this: Error:scala: Error: org. m2 file. 1, sbt. getName(), ResultSerialization. Name the project HelloWorld; Assuming Feb 11, 2012 · For short, it is probably caused by the compatibility of your scala code(or dependency) and JVM. class and . scala-lang" % "scala-reflect" % version % "provided", Please add that dependency manually to the intellij project. Android Studio cannot run the flutter project either. IntelliJ IDEA renames the code element and updates its usages accordingly. Create or import a Scala project as you would normally create or import any other project in IntelliJ IDEA. write("hello world"); p. In the pane to the right, select the module of interest. Open your application in the editor. MyScript. 2 if you're using a recent version of maven (like 3. Provide details and share your research! But avoid …. My initial import of an existing Scala project with a build. On top of that, the Scala plugin provides you with additional windows, such as the sbt tool window and sbt shell. 1. Jul 24, 2016 · So I solved the problem using the following steps in IntelliJ. Create a Scala worksheet file and open it in the editor. The first solution we can use comes from Java: the Class. You shouldn't use scala. 5. File: I don't see any reason to look into scala. writeAll("hello world") Alternatively, if you want to use the Java libraries you can do this hack: Some(new PrintWriter("filename")). Now you can run your script. Jul 27, 2016 · This issue appears to be with Java 9 and gets solved with Java 8. I'm using version 2. But javac also supports cross-compiling, where classes are compiled against a bootstraps of a different Java platform implementation. Nov 20, 2013 · Write a Scala script, e. Additional dependencies added after the initial import were not picked up, although I had checked the auto-import option. util. click on your Project and do Open Module Settings (or press F4). jr kv xr fu fj cb dm rx iv se