Initializing the extension failed

[Ashfaque1234]

Something went wrong while initializing the extension.
Failed to initialize tmc-langs: fetch failed: Error: Client network socket disconnected before secure TLS connection was established. Stack trace: TypeError: fetch failed at e.exports.fetch (c:\Users\hp.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:421288) at processTicksAndRejections (node:internal/process/task_queues:105:5) at t.downloadFile (c:\Users\hp.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:536536) at c:\Users\hp.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:245685
This error may be caused by a proxy or firewall that is blocking network requests or by an antivirus program. This may also be caused by an antivirus program. You can try to resolve this issue by adding an exception to the directory at 'c:\Users\hp\AppData\Roaming\Code\User\globalStorage\moocfi.test-my-code\cli'.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'VSCode'

2. Click on 'TMC.'

3. See error

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. iOS]
• VSCode Version [e.g. 1.4.0]
• TMC Extension Version [e.g. 0.8.1]
• Other related extensions.

TMC Extension logs

Note: To open VSCode's Command Palette, you can select View in the top bar followed by the Command Palette... option, or use a keyboard shortcut (Ctrl+Shift+P on Windows or Linux, ⇧⌘P on MacOS, or F1 on either by default).

1. Open the Command Palette, type in tmc.settings and press Enter to open the extension settings. In the settings, make sure the Log Level is set to Verbose.
2. Open the Command Palette, type in tmc.debug and press Enter to open the extension logs.
3. Reproduce the error.
4. Copy the extension logs that opened in step 2. and paste them here.

Additional context
Add any other context about the problem here.

[Shichen-Ding]

Hi same issues here, i failed initialisation and TMC never finishes its downloading. here's the local log of mine

[2025-09-14 12:04:56:172] [INFO] Starting moocfi.test-my-code in "production" mode.
[2025-09-14 12:04:56:172] [INFO] Visual Studio Code version: 1.104.0
[2025-09-14 12:04:56:172] [INFO] moocfi.test-my-code version: 3.4.2
[2025-09-14 12:04:56:172] [INFO] Currently open workspace: undefined
[2025-09-14 12:04:56:173] [INFO] Platform win32 Arch x64
[2025-09-14 12:04:56:173] [INFO] TMC-Langs version: tmc-langs-cli-x86_64-pc-windows-msvc-0.38.3.exe
[2025-09-14 12:04:56:179] [INFO] Downloading TMC-langs from https://download.mooc.fi/tmc-langs-rust/tmc-langs-cli-x86_64-pc-windows-msvc-0.38.3.exe to temporary file c:\Users\22366\AppData\Roaming\Code\User\globalStorage\moocfi.test-my-code\cli\temp-tmc-langs-cli-x86_64-pc-windows-msvc-0.38.3.exe
[2025-09-14 12:07:09:116] [ERROR] TypeError: terminated. Error: read ECONNRESET.

TypeError: terminated
at Ce.g [as onAborted] (c:\Users\22366.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:532013)
at Ce.emit (node:events:518:28)
at Ce.terminate (c:\Users\22366.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:520614)
at Object.onError (c:\Users\22366.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:534881)
at Request.onError (node:internal/deps/undici/undici:2094:31)
at Object.errorRequest (node:internal/deps/undici/undici:1591:17)
at TLSSocket. (node:internal/deps/undici/undici:6319:16)
at TLSSocket.emit (node:events:530:35)
at node:net:346:12
at TCP.done (node:_tls_wrap:650:7)

[2025-09-14 12:07:09:117] [ERROR] An error occurred while downloading TMC-langs:
Error: Writing to file failed: TypeError: terminated.

Error: Writing to file failed: TypeError: terminated
at t.downloadFile (c:\Users\22366.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:537037)
at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
at async c:\Users\22366.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:245685

[2025-09-14 12:07:09:121] [ERROR] Initialization error during tmc-langs setup:
Error: Writing to file failed: TypeError: terminated.

Error: Writing to file failed: TypeError: terminated
at t.downloadFile (c:\Users\22366.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:537037)
at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
at async c:\Users\22366.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:245685

If this issue is not resolved, the extension may not function properly.
[2025-09-14 12:07:09:121] [WARN] Could not check login status
[2025-09-14 12:07:09:132] [WARN] Skipped data migration
[2025-09-14 12:07:09:133] [WARN] Skipped tmc data directory check
[2025-09-14 12:07:09:137] [WARN] Skipped login command setup
[2025-09-14 12:07:09:138] [WARN] Failed to set initial exercises.
Error: Extension was not initialized properly.

Error: Extension was not initialized properly
at t.refreshLocalExercises (c:\Users\22366.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:976678)
at c:\Users\22366.vscode\extensions\moocfi.test-my-code-3.4.2\dist\extension.js:1:4624
at async r.activate (c:\Users\22366.vscode\extensions\moocfi.test-my-code-3.4.2\dist\extension.js:1:1063)
at async _b.n (file:///e:/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:112:13382)
at async _b.m (file:///e:/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:112:13345)
at async _b.l (file:///e:/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:112:12801)

[2025-09-14 12:07:09:138] [INFO] Initializing UI Actions
[2025-09-14 12:07:09:140] [INFO] Registering TMC VSCode commands
[2025-09-14 12:07:09:146] [INFO] Posting a message to webview
{
"type": "setPanel",
"target": {
"id": 0,
"type": "App"
},
"panel": {
"id": 92462197,
"type": "InitializationErrorHelp"
}
}
[2025-09-14 12:07:09:346] [INFO] Posting message(s) to webview
[
{
"type": "initializationErrors",
"target": {
"id": 92462197,
"type": "InitializationErrorHelp"
},
"cliFolder": "c:\Users\22366\AppData\Roaming\Code\User\globalStorage\moocfi.test-my-code\cli",
"initializationErrors": {
"tmc": {
"error": "Writing to file failed: TypeError: terminated",
"stack": "Error: Writing to file failed: TypeError: terminated\n\tat t.downloadFile (c:\Users\22366\.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:537037)\n\tat process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n\tat async c:\Users\22366\.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:245685"
},
"userData": null,
"workspaceManager": null,
"resources": null,
"exerciseDecorationProvider": null
}
}
]
[2025-09-14 12:08:30:775] [INFO] Posting message(s) to webview
[
{
"type": "initializationErrors",
"target": {
"id": 92462197,
"type": "InitializationErrorHelp"
},
"cliFolder": "c:\Users\22366\AppData\Roaming\Code\User\globalStorage\moocfi.test-my-code\cli",
"initializationErrors": {
"tmc": {
"error": "Writing to file failed: TypeError: terminated",
"stack": "Error: Writing to file failed: TypeError: terminated\n\tat t.downloadFile (c:\Users\22366\.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:537037)\n\tat process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n\tat async c:\Users\22366\.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:245685"
},
"userData": null,
"workspaceManager": null,
"resources": null,
"exerciseDecorationProvider": null
}
}
]
[2025-09-14 12:08:39:790] [ERROR] The extension was not initialized properly
[2025-09-14 12:08:41:180] [INFO] Posting a message to webview
{
"type": "setPanel",
"target": {
"id": 0,
"type": "App"
},
"panel": {
"id": 42004438,
"type": "InitializationErrorHelp"
}
}
[2025-09-14 12:08:41:306] [INFO] Posting message(s) to webview
[
{
"type": "initializationErrors",
"target": {
"id": 42004438,
"type": "InitializationErrorHelp"
},
"cliFolder": "c:\Users\22366\AppData\Roaming\Code\User\globalStorage\moocfi.test-my-code\cli",
"initializationErrors": {
"tmc": {
"error": "Writing to file failed: TypeError: terminated",
"stack": "Error: Writing to file failed: TypeError: terminated\n\tat t.downloadFile (c:\Users\22366\.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:537037)\n\tat process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n\tat async c:\Users\22366\.vscode\extensions\moocfi.test-my-code-3.4.2\dist\lib.js:2:245685"
},
"userData": null,
"workspaceManager": null,
"resources": null,
"exerciseDecorationProvider": null
}
}
]
[2025-09-14 12:28:11:377] [ERROR] The extension was not initialized properly

[Heliozoa]

@Ashfaque1234 Please fill in the information in the issue template

@Shichen-Ding This is a different problem, please make a new issue