FlatBuffer 1.8（Windows flatc）无法生成.bin文件求助

Let's break down the problems with your existing commands and walk through fixes to get those .bin files generated successfully:

1. Fix the Native flatc Command Syntax #

Your first command includes an extra, invalid flatbuffer parameter that's throwing off the tool. Flatc expects options first, followed by the schema file, then the JSON input. Here's the corrected command:

C:\>C:\Flat\flatc.exe -b -j "C:\Akash\FlatBuffer\app\src\main\res\raw\sample_schema.fbs" "C:\Akash\FlatBuffer\app\src\main\res\raw\sample_json.json"

• -b tells flatc to generate the binary .bin file
• -j generates Java bindings (remove this if you don't need them)
• By default, the .bin file will appear in your current working directory (the C:\ root in your example). To specify a custom output folder, add the -o flag:

  C:\>C:\Flat\flatc.exe -b -j -o "C:\Akash\FlatBuffer\output" "C:\Akash\FlatBuffer\app\src\main\res\raw\sample_schema.fbs" "C:\Akash\FlatBuffer\app\src\main\res\raw\sample_json.json"
  

2. Fix the Java Jar Execution Command #

You can't run a jar file directly by typing its name—you need to use java -jar to execute it. Also, make sure the parameter order matches the native tool's structure. Here's the fixed version:

C:\>java -jar "C:\Akash\FlatBuffer\app\libs\flatbuffers-java-1.3.0-SNAPSHOT.jar" -b "C:\Akash\FlatBuffer\app\src\main\res\raw\job_schema.fbs" "C:\Akash\FlatBuffer\app\src\main\res\raw\job.json"

Again, add -o "your/output/path" if you want to control where the .bin file is saved.

3. Additional Checks to Rule Out Other Issues #

• Validate Your Schema: A malformed .fbs file can silently fail generation. Add the -v (verbose) flag to get detailed error messages:

  C:\>C:\Flat\flatc.exe -v -b "C:\Akash\FlatBuffer\app\src\main\res\raw\sample_schema.fbs" "C:\Akash\FlatBuffer\app\src\main\res\raw\sample_json.json"
  

• Check File Paths: Double-check for typos in your schema/JSON paths—even a small mistake will prevent the tool from finding your files.
• Verify Output Location: Don't forget that flatc defaults to saving files in the directory where you run the command, not the directory where your schema/JSON lives. Check C:\ first if you don't see the .bin file elsewhere.
• Match Versions: You're using flatc 1.8 with a 1.3.0-SNAPSHOT Java jar. Version mismatches can cause unexpected behavior—try using the same version of the native tool and Java library for best results.

内容的提问来源于stack exchange，提问作者Aks4125