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_csv.Error: field larger than field limit (131072)
_csv.Error: line contains NUL
_csv.Error: newline inside string
Additional text encountered after finished reading JSON content: ... Path '', line 1, position 10.
After parsing a value an unexpected character was encountered: }. Path '', line 1, position 2.
An invalid XML character
attributes construct error
AttValue: " expected
Bad control character in string literal in JSON at position
bare " in non-quoted-field
base64url vs base64 error
binascii.Error: Incorrect padding
binascii.Error: Incorrect padding (urlsafe base64 decode)
binascii.Error: Invalid base64-encoded string: number of data characters cannot be 1 more than a multiple of 4
binascii.Error: Non-base64 digit found
Cannot deserialize instance of `com.fasterxml.jackson.databind.JsonNode` out of START_ARRAY token
Cannot deserialize instance of `com.fasterxml.jackson.databind.JsonNode` out of START_OBJECT token
Cannot deserialize instance of `java.lang.Boolean` out of START_ARRAY token
Cannot deserialize instance of `java.lang.Boolean` out of START_OBJECT token
Cannot deserialize instance of `java.lang.Integer` out of START_ARRAY token
Cannot deserialize instance of `java.lang.Integer` out of START_OBJECT token
Cannot deserialize instance of `java.lang.String` out of START_ARRAY token
Cannot deserialize instance of `java.lang.String` out of START_OBJECT token
Cannot deserialize instance of `java.util.ArrayList` out of START_ARRAY token
Cannot deserialize instance of `java.util.ArrayList` out of START_OBJECT token
Cannot deserialize instance of `java.util.LinkedHashMap` out of START_ARRAY token
Cannot deserialize instance of `java.util.LinkedHashMap` out of START_OBJECT token
Cannot deserialize instance of `java.util.List` out of START_ARRAY token
Cannot deserialize instance of `java.util.List` out of START_OBJECT token
Cannot deserialize instance of `java.util.Map` out of START_ARRAY token
Cannot deserialize instance of `java.util.Map` out of START_OBJECT token
Cannot deserialize value of type `com.fasterxml.jackson.databind.JsonNode` from Array value (token `JsonToken.START_ARRAY`)
Cannot deserialize value of type `com.fasterxml.jackson.databind.JsonNode` from Object value (token `JsonToken.START_OBJECT`)
Cannot deserialize value of type `java.lang.Boolean` from Array value (token `JsonToken.START_ARRAY`)
Cannot deserialize value of type `java.lang.Boolean` from Object value (token `JsonToken.START_OBJECT`)
Cannot deserialize value of type `java.lang.Boolean` from String "1"
Cannot deserialize value of type `java.lang.Boolean` from String "1.23"
Cannot deserialize value of type `java.lang.Boolean` from String "2026-02-17T16:30:33Z"
Cannot deserialize value of type `java.lang.Boolean` from String "false"
Cannot deserialize value of type `java.lang.Boolean` from String "null"
Cannot deserialize value of type `java.lang.Boolean` from String "true"
Cannot deserialize value of type `java.lang.Integer` from Array value (token `JsonToken.START_ARRAY`)
Cannot deserialize value of type `java.lang.Integer` from Object value (token `JsonToken.START_OBJECT`)
Cannot deserialize value of type `java.lang.Integer` from String "1"
Cannot deserialize value of type `java.lang.Integer` from String "1.23"
Cannot deserialize value of type `java.lang.Integer` from String "2026-02-17T16:30:33Z"
Cannot deserialize value of type `java.lang.Integer` from String "false"
Cannot deserialize value of type `java.lang.Integer` from String "null"
Cannot deserialize value of type `java.lang.Integer` from String "true"
Cannot deserialize value of type `java.lang.String` from Array value (token `JsonToken.START_ARRAY`)
Cannot deserialize value of type `java.lang.String` from Object value (token `JsonToken.START_OBJECT`)
Cannot deserialize value of type `java.time.Instant` from String "1"
Cannot deserialize value of type `java.time.Instant` from String "1.23"
Cannot deserialize value of type `java.time.Instant` from String "2026-02-17T16:30:33Z"
Cannot deserialize value of type `java.time.Instant` from String "false"
Cannot deserialize value of type `java.time.Instant` from String "null"
Cannot deserialize value of type `java.time.Instant` from String "true"
Cannot deserialize value of type `java.time.LocalDateTime` from String "1"
Cannot deserialize value of type `java.time.LocalDateTime` from String "1.23"
Cannot deserialize value of type `java.time.LocalDateTime` from String "2026-02-17T16:30:33Z"
Cannot deserialize value of type `java.time.LocalDateTime` from String "false"
Cannot deserialize value of type `java.time.LocalDateTime` from String "null"
Cannot deserialize value of type `java.time.LocalDateTime` from String "true"
Cannot deserialize value of type `java.util.ArrayList` from Array value (token `JsonToken.START_ARRAY`)
Cannot deserialize value of type `java.util.ArrayList` from Object value (token `JsonToken.START_OBJECT`)
Cannot deserialize value of type `java.util.LinkedHashMap` from Array value (token `JsonToken.START_ARRAY`)
Cannot deserialize value of type `java.util.LinkedHashMap` from Object value (token `JsonToken.START_OBJECT`)
Cannot deserialize value of type `java.util.List` from Array value (token `JsonToken.START_ARRAY`)
Cannot deserialize value of type `java.util.List` from Object value (token `JsonToken.START_OBJECT`)
Cannot deserialize value of type `java.util.Map` from Array value (token `JsonToken.START_ARRAY`)
Cannot deserialize value of type `java.util.Map` from Object value (token `JsonToken.START_OBJECT`)
CDATA section not finished
Comment not terminated
Content is not allowed in prolog
Couldn't find end of Start Tag
CSV columns shift after conversion
CSV row has different column count than header
CSV::MalformedCSVError: Any value after quoted field isn't allowed in line 1.
CSV::MalformedCSVError: Illegal quoting in line 1.
CSV::MalformedCSVError: Unclosed quoted field on line 1.
Document is empty
EmptyDataError: No columns to parse from file
EntityRef: expecting ';'
EntityRef: expecting ';'
EntityRef: invalid name
Error converting value "123" to type 'System.Boolean'. Path 'id', line 1, position 10.
Error converting value "123" to type 'System.Boolean'. Path 'items[0].id', line 1, position 10.
Error converting value "123" to type 'System.Boolean'. Path 'user.id', line 1, position 10.
Error converting value "123" to type 'System.Boolean'. Path 'value', line 1, position 10.
Error converting value "123" to type 'System.Collections.Generic.List`1[System.Int32]'. Path 'id', line 1, position 10.
Error converting value "123" to type 'System.Collections.Generic.List`1[System.Int32]'. Path 'items[0].id', line 1, position 10.
Error converting value "123" to type 'System.Collections.Generic.List`1[System.Int32]'. Path 'user.id', line 1, position 10.
Error converting value "123" to type 'System.Collections.Generic.List`1[System.Int32]'. Path 'value', line 1, position 10.
Error converting value "123" to type 'System.DateTime'. Path 'id', line 1, position 10.
Error converting value "123" to type 'System.DateTime'. Path 'items[0].id', line 1, position 10.
Error converting value "123" to type 'System.DateTime'. Path 'user.id', line 1, position 10.
Error converting value "123" to type 'System.DateTime'. Path 'value', line 1, position 10.
Error converting value "123" to type 'System.Decimal'. Path 'id', line 1, position 10.
Error converting value "123" to type 'System.Decimal'. Path 'items[0].id', line 1, position 10.
Error converting value "123" to type 'System.Decimal'. Path 'user.id', line 1, position 10.
Error converting value "123" to type 'System.Decimal'. Path 'value', line 1, position 10.
Error converting value "123" to type 'System.Double'. Path 'id', line 1, position 10.
Error converting value "123" to type 'System.Double'. Path 'items[0].id', line 1, position 10.
Error converting value "123" to type 'System.Double'. Path 'user.id', line 1, position 10.
Error converting value "123" to type 'System.Double'. Path 'value', line 1, position 10.
Error converting value "123" to type 'System.Guid'. Path 'id', line 1, position 10.
Error converting value "123" to type 'System.Guid'. Path 'items[0].id', line 1, position 10.
Error converting value "123" to type 'System.Guid'. Path 'user.id', line 1, position 10.
Error converting value "123" to type 'System.Guid'. Path 'value', line 1, position 10.
Error converting value "123" to type 'System.Int32'. Path 'id', line 1, position 10.
Error converting value "123" to type 'System.Int32'. Path 'items[0].id', line 1, position 10.
Error converting value "123" to type 'System.Int32'. Path 'user.id', line 1, position 10.
Error converting value "123" to type 'System.Int32'. Path 'value', line 1, position 10.
Error converting value "123" to type 'System.Int64'. Path 'id', line 1, position 10.
Error converting value "123" to type 'System.Int64'. Path 'items[0].id', line 1, position 10.
Error converting value "123" to type 'System.Int64'. Path 'user.id', line 1, position 10.
Error converting value "123" to type 'System.Int64'. Path 'value', line 1, position 10.
Error converting value "123" to type 'System.Net.IPAddress'. Path 'id', line 1, position 10.
Error converting value "123" to type 'System.Net.IPAddress'. Path 'items[0].id', line 1, position 10.
Error converting value "123" to type 'System.Net.IPAddress'. Path 'user.id', line 1, position 10.
Error converting value "123" to type 'System.Net.IPAddress'. Path 'value', line 1, position 10.
Error converting value "123" to type 'System.TimeSpan'. Path 'id', line 1, position 10.
Error converting value "123" to type 'System.TimeSpan'. Path 'items[0].id', line 1, position 10.
Error converting value "123" to type 'System.TimeSpan'. Path 'user.id', line 1, position 10.
Error converting value "123" to type 'System.TimeSpan'. Path 'value', line 1, position 10.
Error converting value "123" to type 'System.Uri'. Path 'id', line 1, position 10.
Error converting value "123" to type 'System.Uri'. Path 'items[0].id', line 1, position 10.
Error converting value "123" to type 'System.Uri'. Path 'user.id', line 1, position 10.
Error converting value "123" to type 'System.Uri'. Path 'value', line 1, position 10.
Error converting value "123.45" to type 'System.Boolean'. Path 'id', line 1, position 10.
Error converting value "123.45" to type 'System.Boolean'. Path 'items[0].id', line 1, position 10.
Error converting value "123.45" to type 'System.Boolean'. Path 'user.id', line 1, position 10.
Error converting value "123.45" to type 'System.Boolean'. Path 'value', line 1, position 10.
Error converting value "123.45" to type 'System.Collections.Generic.List`1[System.Int32]'. Path 'id', line 1, position 10.
Error converting value "123.45" to type 'System.Collections.Generic.List`1[System.Int32]'. Path 'items[0].id', line 1, position 10.
Error converting value "123.45" to type 'System.Collections.Generic.List`1[System.Int32]'. Path 'user.id', line 1, position 10.
Error converting value "123.45" to type 'System.Collections.Generic.List`1[System.Int32]'. Path 'value', line 1, position 10.
Error converting value "123.45" to type 'System.DateTime'. Path 'id', line 1, position 10.
Error converting value "123.45" to type 'System.DateTime'. Path 'items[0].id', line 1, position 10.
Error converting value "123.45" to type 'System.DateTime'. Path 'user.id', line 1, position 10.
Error converting value "123.45" to type 'System.DateTime'. Path 'value', line 1, position 10.
Error converting value "123.45" to type 'System.Decimal'. Path 'id', line 1, position 10.
Error converting value "123.45" to type 'System.Decimal'. Path 'items[0].id', line 1, position 10.
Error converting value "123.45" to type 'System.Decimal'. Path 'user.id', line 1, position 10.
Error converting value "123.45" to type 'System.Decimal'. Path 'value', line 1, position 10.
Error converting value "123.45" to type 'System.Double'. Path 'id', line 1, position 10.
Error converting value "123.45" to type 'System.Double'. Path 'items[0].id', line 1, position 10.
Error converting value "123.45" to type 'System.Double'. Path 'user.id', line 1, position 10.
Error converting value "123.45" to type 'System.Double'. Path 'value', line 1, position 10.
Error converting value "123.45" to type 'System.Guid'. Path 'id', line 1, position 10.
Error converting value "123.45" to type 'System.Guid'. Path 'items[0].id', line 1, position 10.
Error converting value "123.45" to type 'System.Guid'. Path 'user.id', line 1, position 10.
Error converting value "123.45" to type 'System.Guid'. Path 'value', line 1, position 10.
Error converting value "123.45" to type 'System.Int32'. Path 'id', line 1, position 10.
Error converting value "123.45" to type 'System.Int32'. Path 'items[0].id', line 1, position 10.
Error converting value "123.45" to type 'System.Int32'. Path 'user.id', line 1, position 10.
Error converting value "123.45" to type 'System.Int32'. Path 'value', line 1, position 10.
Error converting value "123.45" to type 'System.Int64'. Path 'id', line 1, position 10.
Error converting value "123.45" to type 'System.Int64'. Path 'items[0].id', line 1, position 10.
Error converting value "123.45" to type 'System.Int64'. Path 'user.id', line 1, position 10.
Error converting value "123.45" to type 'System.Int64'. Path 'value', line 1, position 10.
Error converting value "123.45" to type 'System.Net.IPAddress'. Path 'id', line 1, position 10.
Error converting value "123.45" to type 'System.Net.IPAddress'. Path 'items[0].id', line 1, position 10.
Error converting value "123.45" to type 'System.Net.IPAddress'. Path 'user.id', line 1, position 10.
Error converting value "123.45" to type 'System.Net.IPAddress'. Path 'value', line 1, position 10.
Error converting value "123.45" to type 'System.TimeSpan'. Path 'id', line 1, position 10.
Error converting value "123.45" to type 'System.TimeSpan'. Path 'items[0].id', line 1, position 10.
Error converting value "123.45" to type 'System.TimeSpan'. Path 'user.id', line 1, position 10.
Error converting value "123.45" to type 'System.TimeSpan'. Path 'value', line 1, position 10.
Error converting value "123.45" to type 'System.Uri'. Path 'id', line 1, position 10.
Error converting value "123.45" to type 'System.Uri'. Path 'items[0].id', line 1, position 10.
Error converting value "123.45" to type 'System.Uri'. Path 'user.id', line 1, position 10.
Error converting value "123.45" to type 'System.Uri'. Path 'value', line 1, position 10.
Error converting value "2026-02-17" to type 'System.Boolean'. Path 'id', line 1, position 10.
Error converting value "2026-02-17" to type 'System.Boolean'. Path 'items[0].id', line 1, position 10.
Error converting value "2026-02-17" to type 'System.Boolean'. Path 'user.id', line 1, position 10.
Error converting value "2026-02-17" to type 'System.Boolean'. Path 'value', line 1, position 10.
Error converting value "2026-02-17" to type 'System.Collections.Generic.List`1[System.Int32]'. Path 'id', line 1, position 10.
Error converting value "2026-02-17" to type 'System.Collections.Generic.List`1[System.Int32]'. Path 'items[0].id', line 1, position 10.
Error converting value "2026-02-17" to type 'System.Collections.Generic.List`1[System.Int32]'. Path 'user.id', line 1, position 10.

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Can I fix Errors page 1 of 8 without uploading my data? Yes. no-upload.ru tools run locally in your browser (NO UPLOAD). Start with Errors hub and keep samples redacted if you must share them.

What is the fastest safe workflow? Validate first, fix the smallest broken part, then validate again before converting/exporting. This prevents silent downstream issues.

Why does Errors page 1 of 8 happen? Most issues come from copy/paste truncation, wrong encoding, non-strict syntax (comments/trailing commas), or a shape mismatch (array vs object).

Which tool should I start with for Errors page 1 of 8? Start with Errors hub. If you still see errors, follow the related playbook/trend report on this page.