Intellij cant run downloaded file

Collectives on Stack Overflow. Learn more. Asked 3 years, 8 months ago. Active 9 months ago. Viewed 2k times.

These are options available: After finding 'main' function in Kotlin - there is still no 'RUN' or green button to run: I noticed that can Mark Directory for 'src' as 'Resources Root' and that could solve some of the issues but wondering why is this a case and what is the right way to approach to cloned github projects and running them without too much interventions in IntelliJ? Joe Joe 9, 20 20 gold badges 68 68 silver badges bronze badges.

Please provide the Minimal, Complete, and Verifiable example. Make sure content roots are configured correctly: jetbrains. Add a comment. Active Oldest Votes. OldCurmudgeon OldCurmudgeon I do not see any green triangle to run. Added picture to illustrate. Adding this comment for easy access to answer.

TL;DR: Right click the "src" folder. Click the plus sign again to create a new custom tool. Here is my configuration:. Now, specify this to be run before launch:. The default Intellij behavior is to remake the entire project, and that can be really annoying. I find myself adding a quick test class to run often, and I always have to:. Attention, I have a puzzling problem like this.

Only if you create new project from existing directory, that you can run a single java file in IdeaJ, or you will not do what you want. If you are using gradle, none of these tricks work.

This is because gradle controls what gets built. If you set up one project the whole project builds. Create submodules in order to isolate a set of files from each other. They will build and run independent of other files in your project or other submodules. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 7 years, 1 month ago. Active 2 months ago. Viewed 42k times. Is there any way to run just that one file? Ripon Al Wasim Rainmaker's answer is good. But with meistermeier's answer, two steps are needed: compile the file manually, and then run it. If you have a "Name. Add a comment.

Active Oldest Votes. Worked like charm, I need to wait another minute before accepting the answer! This may help you understand its cause. In some cases, this is enough to sort out the problem.

Attach the debugger and examine the program state that led to the failure. Run static analysis to see where incorrect values might be coming from. If a logic error is present, the debugger may save you a lot of time finding and fixing the cause. If the problem is related to application performance, IntelliJ IDEA profiler will help you analyze the problem and assess how efficient your fix is. This is called the shebang mechanism. Shebang support in Java comes in handy when you need to write an executable script, but cannot use a scripting language like bash or Python.

Start the first line with! Use source to specify the language level of the script. Write the body of the script. The script can contain multiple classes and use imports from the standard library.