The language server crashed 5 times, not restarting.

[ImJoke]

How to fix it? I already reinstalled and deleted c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64, but the error still occurs

Initializing server

Caching workspace targets

Finished caching workspace targets

Server initialized

Refreshing rules

Refused to set unsafe header "host"
TypeError: Cannot read properties of null (reading '0')

c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:1986
throw err}function
^

Error: TypeError: Cannot read properties of null (reading '0')
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313334:105
    at caml_call1 (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:1994:53)
    at rl (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:5838:10)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313327:52
    at caml_call_gen (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:302:76)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:991:5
    at new Promise (<anonymous>)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313326:33
    at caml_call_gen (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:302:76)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:998:5

Node.js v20.18.1
[Info  - 4:57:05 AM] Connection to server got closed. Server will restart.
true
Initializing server

Caching workspace targets

Finished caching workspace targets

Server initialized

Refreshing rules

Refused to set unsafe header "host"
TypeError: Cannot read properties of null (reading '0')

c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:1986
throw err}function
^

Error: TypeError: Cannot read properties of null (reading '0')
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313334:105
    at caml_call1 (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:1994:53)
    at rl (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:5838:10)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313327:52
    at caml_call_gen (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:302:76)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:991:5
    at new Promise (<anonymous>)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313326:33
    at caml_call_gen (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:302:76)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:998:5

Node.js v20.18.1
[Info  - 4:57:12 AM] Connection to server got closed. Server will restart.
true
Initializing server

Caching workspace targets

Finished caching workspace targets

Server initialized

Refreshing rules

Refused to set unsafe header "host"
TypeError: Cannot read properties of null (reading '0')

c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:1986
throw err}function
^

Error: TypeError: Cannot read properties of null (reading '0')
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313334:105
    at caml_call1 (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:1994:53)
    at rl (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:5838:10)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313327:52
    at caml_call_gen (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:302:76)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:991:5
    at new Promise (<anonymous>)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313326:33
    at caml_call_gen (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:302:76)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:998:5

Node.js v20.18.1
[Info  - 4:57:18 AM] Connection to server got closed. Server will restart.
true
Initializing server

Caching workspace targets

Finished caching workspace targets

Server initialized

Refreshing rules

Refused to set unsafe header "host"
TypeError: Cannot read properties of null (reading '0')

c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:1986
throw err}function
^

Error: TypeError: Cannot read properties of null (reading '0')
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313334:105
    at caml_call1 (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:1994:53)
    at rl (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:5838:10)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313327:52
    at caml_call_gen (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:302:76)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:991:5
    at new Promise (<anonymous>)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313326:33
    at caml_call_gen (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:302:76)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:998:5

Node.js v20.18.1
[Info  - 4:57:23 AM] Connection to server got closed. Server will restart.
true
Initializing server

Caching workspace targets

Finished caching workspace targets

Server initialized

Refreshing rules

Refused to set unsafe header "host"
TypeError: Cannot read properties of null (reading '0')

c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:1986
throw err}function
^

Error: TypeError: Cannot read properties of null (reading '0')
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313334:105
    at caml_call1 (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:1994:53)
    at rl (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:5838:10)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313327:52
    at caml_call_gen (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:302:76)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:991:5
    at new Promise (<anonymous>)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:313326:33
    at caml_call_gen (c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:302:76)
    at c:\Users\user\.vscode\extensions\semgrep.semgrep-1.10.0-win32-x64\dist\lspjs\Main.bc.js:998:5

Node.js v20.18.1
[Error - 4:57:28 AM] The language server crashed 5 times, not restarting. Please check the output for more information.

[kopecs]

Hey @ImJoke, unfortunately our Windows support is very experimental presently. I'll take a look at this if I can find the time, but I would highly recommend running Semgrep via WSL instead if you're able (See https://code.visualstudio.com/docs/remote/wsl).