9 replies

How to solve "(Jason.DecodeError)" in Ash Authentication Phoenix tutorial

Hi everyone, I am going through the Ash Authentication Tutorial but I'm stuck on an obtuse error that gives me few clues where to debug it:

### my command
$ mix ash_postgres.generate_migrations --name add_user_and_token

### error output
Extension Migrations: 
No extensions to install

Generating Tenant Migrations: 

Generating Migrations:
** (Jason.DecodeError) unexpected byte at position 0: 0x60 ("`")
    (jason 1.4.0) lib/jason.ex:92: Jason.decode!/2
    (ash_postgres 1.3.16) lib/migration_generator/migration_generator.ex:2333: AshPostgres.MigrationGenerator.load_snapshot/1
    (ash_postgres 1.3.16) lib/migration_generator/migration_generator.ex:433: anonymous fn/3 in AshPostgres.MigrationGenerator.deduplicate_snapshots/3
    (elixir 1.14.1) lib/enum.ex:1662: anonymous fn/3 in Enum.map/2
    (stdlib 4.1.1) maps.erl:411: :maps.fold_1/3
    (elixir 1.14.1) lib/enum.ex:2480: Enum.map/2
    (ash_postgres 1.3.16) lib/migration_generator/migration_generator.ex:294: anonymous fn/3 in AshPostgres.MigrationGenerator.create_migrations/3
    (elixir 1.14.1) lib/enum.ex:980: anonymous fn/3 in Enum.each/2

### my command
$ mix ash_postgres.generate_migrations --name add_user_and_token

### error output
Extension Migrations: 
No extensions to install

Generating Tenant Migrations: 

Generating Migrations:
** (Jason.DecodeError) unexpected byte at position 0: 0x60 ("`")
    (jason 1.4.0) lib/jason.ex:92: Jason.decode!/2
    (ash_postgres 1.3.16) lib/migration_generator/migration_generator.ex:2333: AshPostgres.MigrationGenerator.load_snapshot/1
    (ash_postgres 1.3.16) lib/migration_generator/migration_generator.ex:433: anonymous fn/3 in AshPostgres.MigrationGenerator.deduplicate_snapshots/3
    (elixir 1.14.1) lib/enum.ex:1662: anonymous fn/3 in Enum.map/2
    (stdlib 4.1.1) maps.erl:411: :maps.fold_1/3
    (elixir 1.14.1) lib/enum.ex:2480: Enum.map/2
    (ash_postgres 1.3.16) lib/migration_generator/migration_generator.ex:294: anonymous fn/3 in AshPostgres.MigrationGenerator.create_migrations/3
    (elixir 1.14.1) lib/enum.ex:980: anonymous fn/3 in Enum.each/2

It looks like there is an error with a JSON file somewhere but I cannot tell which JSON file it should be and/or how I could find out. Can anyone give any pointers as to how to debug this?

Sorry, I am quite a beginner in Elixir/Phoenix/Ash so I apologize if this has quite an obvious solution. I would just like to understand where to start fixing this.

Ash HQ

Guide: Getting Started With Ash Authentication Phoenix

Read the "Getting Started With Ash Authentication Phoenix" guide on Ash HQ

Ash Framework•3y ago•

9 replies

siros123

How to solve "(Jason.DecodeError)" in Ash Authentication Phoenix tutorial

Hi everyone, I am going through the Ash Authentication Tutorial but I'm stuck on an obtuse error that gives me few clues where to debug it:

### my command
$ mix ash_postgres.generate_migrations --name add_user_and_token

### error output
Extension Migrations: 
No extensions to install

Generating Tenant Migrations: 

Generating Migrations:
** (Jason.DecodeError) unexpected byte at position 0: 0x60 ("`")
    (jason 1.4.0) lib/jason.ex:92: Jason.decode!/2
    (ash_postgres 1.3.16) lib/migration_generator/migration_generator.ex:2333: AshPostgres.MigrationGenerator.load_snapshot/1
    (ash_postgres 1.3.16) lib/migration_generator/migration_generator.ex:433: anonymous fn/3 in AshPostgres.MigrationGenerator.deduplicate_snapshots/3
    (elixir 1.14.1) lib/enum.ex:1662: anonymous fn/3 in Enum.map/2
    (stdlib 4.1.1) maps.erl:411: :maps.fold_1/3
    (elixir 1.14.1) lib/enum.ex:2480: Enum.map/2
    (ash_postgres 1.3.16) lib/migration_generator/migration_generator.ex:294: anonymous fn/3 in AshPostgres.MigrationGenerator.create_migrations/3
    (elixir 1.14.1) lib/enum.ex:980: anonymous fn/3 in Enum.each/2

### my command
$ mix ash_postgres.generate_migrations --name add_user_and_token

### error output
Extension Migrations: 
No extensions to install

Generating Tenant Migrations: 

Generating Migrations:
** (Jason.DecodeError) unexpected byte at position 0: 0x60 ("`")
    (jason 1.4.0) lib/jason.ex:92: Jason.decode!/2
    (ash_postgres 1.3.16) lib/migration_generator/migration_generator.ex:2333: AshPostgres.MigrationGenerator.load_snapshot/1
    (ash_postgres 1.3.16) lib/migration_generator/migration_generator.ex:433: anonymous fn/3 in AshPostgres.MigrationGenerator.deduplicate_snapshots/3
    (elixir 1.14.1) lib/enum.ex:1662: anonymous fn/3 in Enum.map/2
    (stdlib 4.1.1) maps.erl:411: :maps.fold_1/3
    (elixir 1.14.1) lib/enum.ex:2480: Enum.map/2
    (ash_postgres 1.3.16) lib/migration_generator/migration_generator.ex:294: anonymous fn/3 in AshPostgres.MigrationGenerator.create_migrations/3
    (elixir 1.14.1) lib/enum.ex:980: anonymous fn/3 in Enum.each/2

Ash HQ

Guide: Getting Started With Ash Authentication Phoenix

Read the "Getting Started With Ash Authentication Phoenix" guide on Ash HQ

How to solve "(Jason.DecodeError)" in Ash Authentication Phoenix tutorial

How to solve "(Jason.DecodeError)" in Ash Authentication Phoenix tutorial

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