Error map

OpenSSL::SSL::SSLError: certificate verify failed (Ruby) Ruby: OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=error: certificate verify failed (unable to get local issuer certificate)

Ruby / Rails · layer 4, Application & API

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Centre: this error. First ring: errors it is linked with (7). Outer ring: what those are linked with. Colours show the layer of a request each error belongs to. Click any dot to re-centre the map on it; hover to follow its connections. The centre dot opens the error page.

1 · On your device 2 · Network 4 · Application & API 6 · Platform & cloud
OpenSSL::SSL::SSLError: certificate verify failed (Ruby) — Ruby: OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=error: certificate verify failed (unable to get local issuer certificate) (Ruby / Rails)OpenSSL::SS…curl: (60) SSL certificate problem — curl: (60) SSL certificate problem: unable to get local issuer certificate (SSL / TLS)curl: (60) SSL cert…unable to get local issuer certificate — OpenSSL: error:num=20:unable to get local issuer certificate / SSL: CERTIFICATE_VERIFY_FAILED (SSL / TLS)unable to get local…Bundler could not find compatible versions for gem — Bundler: Bundler could not find compatible versions for gem "activesupport": In Gemfile: rails (= 7.1.0) depends on activesupport (= 7.1.0) (Ruby / Rails)Bundler could not f…incomplete certificate chain — SSL Labs: Chain issues: Incomplete — Extra download (intermediate certificate missing) (SSL / TLS)incomplete certific…ArgumentError: wrong number of arguments (given 1, expected 2) — Ruby: ArgumentError: wrong number of arguments (given 1, expected 2..3) (Ruby / Rails)ArgumentError: wron…ArgumentError: missing keyword / unknown keyword — Ruby: ArgumentError: missing keyword: :name / unknown keyword: :nmae (Ruby / Rails)ArgumentError: miss…Bundler: Could not find gem in locally installed gems — Bundler: Could not find gem 'rails (~> 7.1)' in locally installed gems / Could not find rails-7.1.0 in any of the gem sources listed in your Gemfile (Ruby / Rails)Bundler: Could not …DEPTH_ZERO_SELF_SIGNED_CERT — Node/OpenSSL: Error: self signed certificate (code: DEPTH_ZERO_SELF_SIGNED_CERT) (SSL / TLS)DEPTH_ZERO_SELF_SIG…no alternative certificate subject name matches target host name — curl: (51) SSL: no alternative certificate subject name matches target host name 'example.com' (SSL / TLS)no alternative cert…error setting certificate verify locations — curl: (77) error setting certificate verify locations: CAfile: /etc/ssl/certs/ca-certificates.crt CApath: none (SSL / TLS)error setting certi…ERR_OSSL_EVP_UNSUPPORTED — Error: error:0308010C:digital envelope routines::unsupported (Node.js)ERR_OSSL_EVP_UNSUPP…no start line — OpenSSL: unable to load certificate / PEM routines:get_name:no start line (key values mismatch) (SSL / TLS)no start lineHandshakeException: CERTIFICATE_VERIFY_FAILED — Dart: HandshakeException: Handshake error in client (OS Error: CERTIFICATE_VERIFY_FAILED: unable to get local issuer certificate) (Flutter / Dart)HandshakeException:…held broken packages — Unmet dependencies / E: Unable to correct problems, you have held broken packages (Linux)held broken packagesTypeError: no implicit conversion of nil into String — Ruby: TypeError: no implicit conversion of nil into String (Ruby / Rails)TypeError: no impli…TypeError: nil can't be coerced into Integer — Ruby: TypeError: nil can't be coerced into Integer / String can't be coerced into Integer (Ruby / Rails)TypeError: nil can'…ERR_CERT_AUTHORITY_INVALID — NET::ERR_CERT_AUTHORITY_INVALID (Your connection is not private) (JavaScript)ERR_CERT_AUTHORITY_…ERR_INVALID_ARG_TYPE — TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received undefined (Node.js)ERR_INVALID_ARG_TYPEImproperlyConfigured — django.core.exceptions.ImproperlyConfigured: settings are not configured / SECRET_KEY must not be empty (Python)ImproperlyConfiguredundefined method for nil — Ruby: NoMethodError: undefined method `x' for nil (nil:NilClass) (Ruby / Rails)undefined method fo…You don't have write permissions for the /Library/Ruby/Gems directory — macOS: ERROR: While executing gem ... (Gem::FilePermissionError) You don't have write permissions for the /Library/Ruby/Gems/2.6.0 directory (macOS)You don't have writ…NameError: undefined local variable or method — Ruby: NameError: undefined local variable or method 'x' for main:Object (Ruby / Rails)NameError: undefine…FrozenError: can't modify frozen String — Ruby: FrozenError: can't modify frozen String: "abc" (Ruby / Rails)FrozenError: can't …LoadError: cannot load such file — Ruby: LoadError: cannot load such file -- nokogiri (or: cannot load such file -- bundler/setup) (Ruby / Rails)LoadError: cannot l…Failed to build gem native extension — Ruby: ERROR: Failed to build gem native extension. current directory: /gems/pg-1.5.4/ext/pg — An error occurred while installing pg (Ruby / Rails)Failed to build gem…Nokogiri: could not find a platform gem / libxml2 build error — Bundler: Your bundle only supports platforms ["x86_64-linux"] but your local platform is arm64-darwin / Could not find gem 'nokogiri (1.16.0-arm64-darwin)' (Ruby / Rails)Nokogiri: could not…Your Ruby version is X, but your Gemfile specified Y — Bundler: Your Ruby version is 3.1.2, but your Gemfile specified 3.3.0 (Ruby / Rails)Your Ruby version i…RSpec::Expectations::ExpectationNotMetError: expected X got Y — RSpec: expected: 200 got: 404 (compared using ==) — RSpec::Expectations::ExpectationNotMetError (Ruby / Rails)RSpec::Expectations…

Directly related (7)

curl: (60) SSL certificate problemSSL / TLS

curl: (60) SSL certificate problem: unable to get local issuer certificate

curl could not verify the server's certificate — missing CA, incomplete chain, self-signed or expired certificate.

unable to get local issuer certificateSSL / TLS

OpenSSL: error:num=20:unable to get local issuer certificate / SSL: CERTIFICATE_VERIFY_FAILED

The client could not build a chain from the server's certificate to a CA it trusts — the issuer is missing locally or the server…

Bundler could not find compatible versions for gemRuby / Rails

Bundler: Bundler could not find compatible versions for gem "activesupport": In Gemfile: rails (= 7.1.0) depends on activesupport (= 7.1.0)

Two gems in your Gemfile require incompatible versions of a shared dependency.

incomplete certificate chainSSL / TLS

SSL Labs: Chain issues: Incomplete — Extra download (intermediate certificate missing)

The server sends only its own certificate and not the intermediate CA(s), so some clients cannot build a trusted chain.

ArgumentError: wrong number of arguments (given 1, expected 2)Ruby / Rails

Ruby: ArgumentError: wrong number of arguments (given 1, expected 2..3)

A method was called with more or fewer arguments than it accepts.

ArgumentError: missing keyword / unknown keywordRuby / Rails

Ruby: ArgumentError: missing keyword: :name / unknown keyword: :nmae

A method requiring keyword arguments was called without them, or with a misspelt keyword.

Bundler: Could not find gem in locally installed gemsRuby / Rails

Bundler: Could not find gem 'rails (~> 7.1)' in locally installed gems / Could not find rails-7.1.0 in any of the gem sources listed in your Gemfile

A gem from the Gemfile/Gemfile.lock isn't installed (or isn't available at that version).

Two steps away (21)

DEPTH_ZERO_SELF_SIGNED_CERTSSL / TLS

Node/OpenSSL: Error: self signed certificate (code: DEPTH_ZERO_SELF_SIGNED_CERT)

The server presented a self-signed certificate (issuer equals subject), which no CA vouches for.

no alternative certificate subject name matches target host nameSSL / TLS

curl: (51) SSL: no alternative certificate subject name matches target host name 'example.com'

The certificate's names (SANs) don't include the host curl connected to.

error setting certificate verify locationsSSL / TLS

curl: (77) error setting certificate verify locations: CAfile: /etc/ssl/certs/ca-certificates.crt CApath: none

curl cannot read the CA bundle file it is configured to use — missing file, wrong path or permissions.

ERR_OSSL_EVP_UNSUPPORTEDNode.js

Error: error:0308010C:digital envelope routines::unsupported

An old build tool (webpack 4, old react-scripts) uses a hash algorithm that OpenSSL 3 in Node 17+ disables.

no start lineSSL / TLS

OpenSSL: unable to load certificate / PEM routines:get_name:no start line (key values mismatch)

OpenSSL (or Nginx/Apache) couldn’t read the certificate or key — wrong file format, wrong file, or the key doesn’t match the cert…

HandshakeException: CERTIFICATE_VERIFY_FAILEDFlutter / Dart

Dart: HandshakeException: Handshake error in client (OS Error: CERTIFICATE_VERIFY_FAILED: unable to get local issuer certificate)

The app refused the server's TLS certificate because it is self-signed, expired, missing intermediates, or the device clock/CA st…

held broken packagesLinux

Unmet dependencies / E: Unable to correct problems, you have held broken packages

apt can’t find a set of package versions that satisfies all dependencies — usually mixed repositories or a package from another r…

TypeError: no implicit conversion of nil into StringRuby / Rails

Ruby: TypeError: no implicit conversion of nil into String

A String method (`+`, `File.join`, `Array#join` usage) received `nil` instead of a string.

TypeError: nil can't be coerced into IntegerRuby / Rails

Ruby: TypeError: nil can't be coerced into Integer / String can't be coerced into Integer

Arithmetic combined a number with `nil` (or a String) which Ruby can't convert automatically.

ERR_CERT_AUTHORITY_INVALIDJavaScript

NET::ERR_CERT_AUTHORITY_INVALID (Your connection is not private)

The site’s certificate isn’t signed by a CA the browser trusts — self-signed, missing intermediates, or intercepted by a proxy.

ERR_INVALID_ARG_TYPENode.js

TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received undefined

A Node API got an argument of the wrong type — usually undefined because an env var or config value is missing.

ImproperlyConfiguredPython

django.core.exceptions.ImproperlyConfigured: settings are not configured / SECRET_KEY must not be empty

Django can’t load its settings — DJANGO_SETTINGS_MODULE unset, a required setting missing, or an environment variable not provide…

undefined method for nilRuby / Rails

Ruby: NoMethodError: undefined method `x' for nil (nil:NilClass)

You called a method on nil — the object you expected (a record, hash value, param) wasn’t there.

You don't have write permissions for the /Library/Ruby/Gems directorymacOS

macOS: ERROR: While executing gem ... (Gem::FilePermissionError) You don't have write permissions for the /Library/Ruby/Gems/2.6.0 directory

`gem install` tries to write into Apple's system Ruby, which is protected and shouldn't be modified.

NameError: undefined local variable or methodRuby / Rails

Ruby: NameError: undefined local variable or method 'x' for main:Object

Ruby saw a bare identifier that is neither a local variable nor a method on the current object.

FrozenError: can't modify frozen StringRuby / Rails

Ruby: FrozenError: can't modify frozen String: "abc"

You tried to change an object that's frozen — string literals under `# frozen_string_literal: true`, constants, symbols or frozen…

LoadError: cannot load such fileRuby / Rails

Ruby: LoadError: cannot load such file -- nokogiri (or: cannot load such file -- bundler/setup)

`require` couldn't find the file/gem — it isn't installed, not in the Gemfile, or the load path is wrong.

Failed to build gem native extensionRuby / Rails

Ruby: ERROR: Failed to build gem native extension. current directory: /gems/pg-1.5.4/ext/pg — An error occurred while installing pg

A gem with C code couldn't compile, usually because a system library or header is missing.

Nokogiri: could not find a platform gem / libxml2 build errorRuby / Rails

Bundler: Your bundle only supports platforms ["x86_64-linux"] but your local platform is arm64-darwin / Could not find gem 'nokogiri (1.16.0-arm64-darwin)'

The lockfile has no Nokogiri build for the current platform (precompiled "native" gems are per platform).

Your Ruby version is X, but your Gemfile specified YRuby / Rails

Bundler: Your Ruby version is 3.1.2, but your Gemfile specified 3.3.0

`.ruby-version`/the Gemfile `ruby` line requires a different Ruby than the one running.

RSpec::Expectations::ExpectationNotMetError: expected X got YRuby / Rails

RSpec: expected: 200 got: 404 (compared using ==) — RSpec::Expectations::ExpectationNotMetError

An RSpec `expect` assertion didn't hold: the actual value differs from what the test expected.

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