Originally posted by **shengchao-lin** March 15, 2023
When variable reference is used that relates to the current file, e.g., `${file}`, `${fileBasename}`, etc, the run task freezes. However, a simple echo does not. See the example below. Task "My C++ build" hangs but "echo" does not.
When freezing, the terminal tab shows:
If task "echo" is ran first, launched the terminal tab, and ran successfully, then task "My C++ build" can ran successfully too.
Additionally, when the `"${workspaceFolder}/${fileBasename}"` is replaced with something like `"${workspaceFolder}/main.cpp"`, the task "My C++ build" runs successfully.
What could be the issue here?
```
"tasks": [
{
"type": "cppbuild",
"label": "build",
"command": "g++",
"args": [
"-fdiagnostics-color=always",
"-g",
"${workspaceFolder}/${fileBasename}",
"-o",
"${workspaceFolder}/output",
"-std=c++20"
],
"detail": "compiler: /usr/bin/g++",
"group": {
"kind": "build",
"isDefault": true
}
},
{
"type": "shell",
"label": "echo",
"command": "echo ${workspaceFolder}/${fileBasename}",
}
]
```
Platform: MacOS Ventura 13.2.1
VSCODE:
Version: 1.76.2
Commit: ee2b180d582a7f601fa6ecfdad8d9fd269ab1884
Date: 2023-03-14T17:54:09.061Z
Electron: 19.1.11
Chromium: 102.0.5005.196
Node.js: 16.14.2
V8: 10.2.154.26-electron.0
OS: Darwin x64 22.3.0
Sandboxed: No
Extension used: C/C++
sean-mcmanus
commented
1 year ago
Discussed in https://github.com/microsoft/vscode-cpptools/discussions/10686