Linux下用dotc/dotr编译运行Dotty项目遇.vscode目录创建错误求助

Hey there! Let's get this Dotty compilation issue sorted out for you. The core error here is clear: Could not create directory .vscode — this means your user account doesn't have the necessary permissions to create a .vscode folder in your current working directory, or there's a hiccup with how Dotty's build script is trying to generate this directory.

Here are step-by-step fixes you can try:

1. Verify and Fix Directory Permissions #

First, check who owns your current project directory and what permissions are set:

ls -ld .

Look for the owner (the first entry after permissions) — it should be your username (naseem in your case). If not, take ownership of the directory and its contents:

sudo chown -R $USER:$USER .

If you already own the directory but lack write permissions, add them:

chmod u+w .

2. Manually Create the .vscode Directory #

Sometimes pre-creating the directory can bypass the build script's permission issues. Run this command in your project directory:

mkdir .vscode

If you get a permission error here, create it with sudo and then transfer ownership:

sudo mkdir .vscode
sudo chown $USER:$USER .vscode

3. Clean Dotty's Build Cache #

The error traces back to SBT trying to load Dotty's project settings. Stale cache files might be causing conflicts. Try cleaning the cache:

• First, navigate to your cloned Dotty directory:

  cd ~/dotty
  

• Run SBT clean:

  sbt clean
  

• You can also delete the staging directory mentioned in your error log:

  rm -rf ~/.sbt/1.0/staging/00a36f6d792ab07b62c5/dotty
  

Then go back to your project directory and try running dotc Main.scala again.

4. Try a Different Project Directory #

Your Desktop directory might have restrictive permissions (some Linux setups lock down Desktop access for security). Move your project to your home directory and try again:

mv ~/Desktop/hellodotty ~/hellodotty
cd ~/hellodotty/src/main/scala
dotc Main.scala

Any of these steps should resolve the permission issue blocking the creation of the .vscode directory. Let me know if you hit any other snags!

内容的提问来源于stack exchange，提问作者NaseemMahasneh