Launch Error causing freezing, making program unusable: System.Text.Json.JsonException

[nsde]

Windows 10 x64 | BCU v.5.6 & v5.7 x64 [SETUP] | AMD CPU

How to reproduce

• Install non-portable version
• I have used prior versions of the software (pretty sure I have updated the software without any issues before)
• I updated to v5.7 and the error occurred

Workaround

• v5.6 PORTABLE seems to work fine

File:
BCUninstaller.dll [5.7.0.0] - This error also occurs in version 5.6

Exception
'C' is an invalid start of a value. Path: $ | LineNumber: 0 | BytePositionInLine: 0.

Target Site
Void ReThrowWithPath(System.Text.Json.ReadStack ByRef, System.Text.Json.JsonReaderException) @ System.Text.Json.ThrowHelper

NBug: 1.2.0.0
CLR: 6.0.22

[nsde]

It seems like this the second popup appears after uninstalling a software using v5.6 PORTABLE, but BCU continues working just fine.

[Klocman]

Did you try a clean install of v5.7? Does it show the same error?

[nsde]

Did you try a clean install of v5.7? Does it show the same error?

Oh, do you mean removing all old installation files or changing the installation directory?

[Klocman]

Get the portable version and extract it to a completely new directory.

[hsopen]

(This is Google Translate) Have you solved it? I also had a similar error. Finally, I ran scoop export and found that there was a problem with one of the buckets. I deleted the bucket and then re-imported it, and the problem was solved.

[PabloGrok]

I'm having this issue as well. Here's the copied error text:

System.Text.Json.JsonException
'G' is an invalid start of a value. Path: $ | LineNumber: 0 | BytePositionInLine: 0.
   at System.Text.Json.ThrowHelper.ReThrowWithPath(ReadStack& state, JsonReaderException ex)
   at System.Text.Json.Serialization.JsonConverter`1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
   at System.Text.Json.JsonSerializer.ReadFromSpan[TValue](ReadOnlySpan`1 utf8Json, JsonTypeInfo jsonTypeInfo, Nullable`1 actualByteCount)
   at System.Text.Json.JsonSerializer.ReadFromSpan[TValue](ReadOnlySpan`1 json, JsonTypeInfo jsonTypeInfo)
   at System.Text.Json.JsonSerializer.Deserialize[TValue](String json, JsonTypeInfo`1 jsonTypeInfo)
   at UninstallTools.Factory.ScoopFactory.GetUninstallerEntries(ListGenerationCallback progressCallback)
   at UninstallTools.Factory.ApplicationUninstallerFactory.GetMiscUninstallerEntries(ListGenerationCallback progressCallback)

Inner: 
System.Text.Json.JsonReaderException
'G' is an invalid start of a value. LineNumber: 0 | BytePositionInLine: 0.
   at System.Text.Json.ThrowHelper.ThrowJsonReaderException(Utf8JsonReader& json, ExceptionResource resource, Byte nextByte, ReadOnlySpan`1 bytes)
   at System.Text.Json.Utf8JsonReader.ConsumeValue(Byte marker)
   at System.Text.Json.Utf8JsonReader.ReadFirstToken(Byte first)
   at System.Text.Json.Utf8JsonReader.ReadSingleSegment()
   at System.Text.Json.Utf8JsonReader.Read()
   at System.Text.Json.Serialization.JsonConverter`1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)

I tried running the portable version from a different directory and the result is the same. Please let me know if I can do anything to provide more info.