ErrLookup › flippercloud/flipper

flippercloud/flipper

🐬 Beautiful, performant feature flags for Ruby. · Ruby · 186 source files

Analyzed at 1f86de3ec9 on 2026-08-23. 49 documented errors.

Code / MessageTypeSeverityTags
Group #{name.inspect} has already been registered
exception error ruby, flipper, groups, duplicate-registration, rails-reloading
Your database needs to be migrated to use the latest Flipper
exception error ruby, flipper, active-record, migration, schema-drift, expression-flags
Actor limit of #{@limit} exceeded for feature #{feature.key}
exception error ruby, flipper, cloud, actor-limit, rollout
Failed with status: #{response.code}
exception error ruby, flipper, http-adapter, cloud, authentication, rest-api
The MONGO_URL environment variable must be set. For example:
exception error
write attempted while in read only mode
exception error
unsupported method called for import adapter
exception error
Your database needs to be migrated to use the latest Flipper
exception error
Could not find feature #{name.inspect}. Call `Flipper.add(#{
exception error
#{self.class} does not support request method #{request_meth
exception error
Flipper::Cloud #{name} is missing. Please set #{env_var} or
exception error
timestamp should be an instance of Time
exception error
signature should be a string
exception error
secret should be a string
exception error
secret should not be empty
exception error
version should be a string
exception error
payload should be a string
exception error
Unable to extract timestamp and signatures from header
exception error
No signatures found with expected version #{@version}
exception error
No signatures found matching the expected signature for payl
exception error
Timestamp outside the tolerance zone (#{Time.at(timestamp)})
exception error
:min_timeout_ms must be >= 0 but was #{@min_timeout_ms.inspe
exception error
:max_timeout_ms must be >= 0 but was #{@max_timeout_ms.inspe
exception error
:min_timeout_ms (#{@min_timeout_ms.inspect}) must be <= :max
exception error
Unexpected response code=#{response.code} request_id=#{reque
exception error
Flipper::Cloud url must use https but was #{value.inspect}.
exception error
#{name} must be a String or Symbol
exception error
#{object.inspect} cannot be converted into an expression
exception error
#{expression.value.inspect} contains empty Any/All groups an
exception error
#{key} is already registered
exception error
#{value.inspect} cannot be converted to an integer
exception error
#{value.inspect} cannot be converted to a float
exception error
#{value.inspect} cannot be converted to a number
exception error
#{value.inspect} cannot be converted to a set
exception error
actor cannot be nil
exception error
#{actor.inspect} must respond to flipper_id, but does not
exception error
value must be a positive number less than or equal to 100, b
exception error
#{self.class} does not support request method #{request_meth
exception error
The banner_class provided '#{value}' is not one of: danger,
exception error
#{data_type} is not supported by this adapter
exception error
#{gate.key} is not a valid flipper gate key
exception error
#{data_type} is not supported by this adapter
exception error
#{gate} is not supported by this adapter yet
exception error
#{data_type} is not supported by this adapter
exception error ruby, flipper, mongodb, adapter, gates, version-mismatch, expression-gate
#{gate} is not supported by this adapter yet
exception error ruby, flipper, adapter, pstore, gates, data-type, custom-gate
#{data_type} is not supported by this adapter
exception error ruby, flipper, redis, adapter, gates, version-mismatch, expression-gate
#{data_type} is not supported by this adapter
exception error ruby, flipper, sequel, adapter, gates, version-mismatch, expression-gate
Flipper::Middleware::Memoizer no longer initializes with a f
exception error ruby, rack, middleware, breaking-change, upgrade, flipper
Template does not exist: #{path}
exception error ruby, flipper-ui, erb, templates, custom-action