dart pub get CERTIFICATE_VERIFY_FAILED

Question

I recently upgraded a project from 1.22.1 to 1.24.3. Subsequently, pub get has failed with either

Handshake error in client (OS Error: CERTIFICATE_VERIFY_FAILED: self signed certificate in certificate chain(ssl_cert.c:345))

or

Handshake error in client (OS Error: error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED)

I've found similar threads about getting this error, but none of the solutions given in those threads seem to have fixed the issue. I ran pub --trace --verbosity all get as requested in those threads, output here

The less verbose output from Webstorm's console is

    Working dir: C:\SGGDev\pearls\client
    C:\DevTools\dart-sdk-1-24-3\bin\pub.bat get
    Resolving dependencies...
    Downloading uuid 0.5.3...
    Downloading convert 2.0.1...
    Downloading charcode 1.1.1...
    Downloading crypto 2.0.2+1...
    Downloading collection 1.14.3...
    Downloading typed_data 1.1.5...
    Downloading xml 2.6.0...
    Downloading petitparser 1.6.1...
    Downloading matcher 0.12.1+2...
    Downloading stack_trace 1.8.0...
    Downloading path 1.4.2...
    Handshake error in client (OS Error: 
        CERTIFICATE_VERIFY_FAILED: self signed certificate in certificate chain(ssl_cert.c:345))
    Process finished with exit code 1

Before I deleted the pub cache in appdata, a suggested solution, the same error was encountered almost immediately, after the first or second package.

I'd consider filing a bug on the pub client in this case. – matanlurey Feb 24 '18 at 23:51 — matanlurey, Feb 24 '18 at 23:51

Alexander Doroshko · Answer 1 · 2018-04-04T10:08:22.257

8

Are you on Windows and using Kaspersky antivirus? I do not know all the technical details but this antivirus somehow affects the handshake. Disabling it should help.

Another workaround is to set the following environment variables:

PUB_HOSTED_URL=https://pub.flutter-io.cn FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn

The problem is also tracked here though I guess it's not a Dart SDK issue: https://github.com/dart-lang/sdk/issues/32131

edited Apr 04 '18 at 10:08

answered Feb 25 '18 at 19:28

Alexander Doroshko

1,831
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Disabling antivirus at my work system was not an option. So the second option, which is to override env variables solved my issue. – Sanjay May 04 '20 at 18:41

score 1 · Accepted Answer · answered Mar 06 '18 at 15:59

1

For me the error was caused by my antivirus, i had to disable it to make Dart works.

answered Mar 06 '18 at 15:59

Rémy Menard

64
1
8

1

This worked for me only after I restarted WebStorm while the antivirus was disabled – Jacob Apr 02 '18 at 17:41

dart pub get CERTIFICATE_VERIFY_FAILED

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