使用pre_compile=True building model失败

在rknn.build设置pre_compile=True后，报错。设置代码节选如下：

1.         # Build model
   
2.         print('--> Building model')
   
3.         ret = rknn.build(do_quantization=True, pre_compile=True, dataset='./dataset.txt')
   
4.         if ret != 0:
   
5.             print('build model failed.')
   
6.             exit(ret)
   
7.         print('done')

复制代码
报错结果如下：

1.     (venv) wenji-G3:~/rv1109/external/rknn-toolkit/examples/darknet/yolov3_rknn$ python test.py
   
2.     --> Loading model
   
3.     done
   
4.     --> Building model
   
5.     W The RKNN Model generated can not run on simulator when pre_compile is True.
   
6.     make: gcc-linaro-6.3.1-2017.05-i686_aarch64-linux-gnugcc: Command not found
   
7.     make: *** [vnn_pre_process.o] Error 127
   
8.     /bin/sh: 1: /tmp/tmp0s82ra97/gen_nbg: not found
   
9.     mv: 无法获取'/home/rv1109/external/rknn-toolkit/examples/darknet/yolov3_rknn/*.nb' 的文件状态(stat): 没有那个文件或目录
   
10.     mv: 无法获取'/home/rv1109/external/rknn-toolkit/examples/darknet/yolov3_rknn/*.dat' 的文件状态(stat): 没有那个文件或目录
    
11.     E Generate nbg failed.
    
12.     W ----------------Warning(1)----------------
    
13.     E Catch exception when building RKNN model!
    
14.     E Traceback (most recent call last):
    
15.     E File "rknn/base/ovxconfiggenerator.py", line 193, in rknn.base.ovxconfiggenerator.generate_vx_config_from_files
    
16.     E File "rknn/base/RKNNlib/app/exporter/ovxlib_case/casegenerator.py", line 632, in rknn.base.RKNNlib.app.exporter.ovxlib_case.casegenerator.CaseGenerator.generate
    
17.     E File "rknn/base/RKNNlib/app/exporter/ovxlib_case/casegenerator.py", line 583, in rknn.base.RKNNlib.app.exporter.ovxlib_case.casegenerator.CaseGenerator._gen_special_case
    
18.     E File "rknn/base/RKNNlib/app/exporter/ovxlib_case/casegenerator.py", line 548, in rknn.base.RKNNlib.app.exporter.ovxlib_case.casegenerator.CaseGenerator._gen_nb_file
    
19.     E AttributeError: 'CaseGenerator' object has no attribute 'nbg_graph_file_path'
    
20.     E During handling of the above exception, another exception occurred:
    
21.     E Traceback (most recent call last):
    
22.     E File "rknn/api/rknn_base.py", line 601, in rknn.api.rknn_base.RKNNBase.build
    
23.     E File "rknn/api/rknn_base.py", line 414, in rknn.api.rknn_base.RKNNBase._build
    
24.     E File "rknn/base/ovxconfiggenerator.py", line 195, in rknn.base.ovxconfiggenerator.generate_vx_config_from_files
    
25.     E File "rknn/api/rknn_log.py", line 312, in rknn.api.rknn_log.RKNNLog.e
    
26.     E ValueError: Generate nbg failed.
    
27.     build model failed.
    
28. 
    
29. 
    

复制代码/tmp 目录下无  tmp0s82ra97/gen_nbg  请问这个目录文件如何生成的？需要自己添加吗？在sdk中有没有？
/home/rv1109/external/rknn-toolkit/examples/darknet/yolov3_rknn/*.nb'及 /*.dat  两个文件也不存在，这两个文件需要获取吗？如何获取？

看了《Rockchip_Trouble_Shooting_RKNN_Toolkit_V1.4.0_CN.pdf》中关于rknn.build()设置pre_compile=True报错，其中写道需要确认

请确认:
1) 系统装有 gcc 编译工具链
2) 模型的名称只包含“字母”、“数字”、“_”,特别注意有些复制过来的模型名称
会自动加上”(1)”,这时会失败。也可以升级到 1.3.0 或之后的版本,由 RKNN Toolkit 自
动处理这些特殊字符。
如果不属于上述情况,可以尝试使用 export_rknn_precompile_model 接口从板子上导出
预编译模型。

系统为ubuntu18.04装有gcc，rknn-toolkit  1.6.0,

使用export_rknn_precompile_model的代码如下：

1.     print('--> init runtime')
   
2.     # ret = rknn.init_runtime()
   
3.     ret = rknn.init_runtime(target='rv1126', device_id='3166854b086a700f', rknn2precompile=True)
   
4.     if ret != 0:
   
5.         print('init runtime failed.')
   
6.         exit(ret)
   
7.     print('done')
   
8. 
   
9. 
   
10. 
    
11.     print('--> export pre-compile model')
    
12.     # Note:the rknn2precompile must be set True when call init_runtime
    
13.     ret = rknn.export_rknn_precompile_model('./test_pre_compile.rknn')
    
14.     if ret != 0:
    
15.         print('export pre-compile model failed.')
    
16.         exit(ret)
    
17. 
    
18. 
    
19.     rknn.release()
    

复制代码仍然报上述错误，如下所示：

1. (venv) wenji-G3:~/rv1109/external/rknn-toolkit/examples/darknet/yolov3_rknn$ python test.py
   
2. --> Loading model
   
3. done
   
4. --> Building model
   
5. W The RKNN Model generated can not run on simulator when pre_compile is True.
   
6. make: gcc-linaro-6.3.1-2017.05-i686_aarch64-linux-gnugcc: Command not found
   
7. make: *** [vnn_pre_process.o] Error 127
   
8. /bin/sh: 1: /tmp/tmp0s82ra97/gen_nbg: not found
   
9. mv: 无法获取'/home/rv1109/external/rknn-toolkit/examples/darknet/yolov3_rknn/*.nb' 的文件状态(stat): 没有那个文件或目录
   
10. mv: 无法获取'/home/rv1109/external/rknn-toolkit/examples/darknet/yolov3_rknn/*.dat' 的文件状态(stat): 没有那个文件或目录
    
11. E Generate nbg failed.
    
12. W ----------------Warning(1)----------------
    
13. E Catch exception when building RKNN model!
    
14. E Traceback (most recent call last):
    
15. E File "rknn/base/ovxconfiggenerator.py", line 193, in rknn.base.ovxconfiggenerator.generate_vx_config_from_files
    
16. E File "rknn/base/RKNNlib/app/exporter/ovxlib_case/casegenerator.py", line 632, in rknn.base.RKNNlib.app.exporter.ovxlib_case.casegenerator.CaseGenerator.generate
    
17. E File "rknn/base/RKNNlib/app/exporter/ovxlib_case/casegenerator.py", line 583, in rknn.base.RKNNlib.app.exporter.ovxlib_case.casegenerator.CaseGenerator._gen_special_case
    
18. E File "rknn/base/RKNNlib/app/exporter/ovxlib_case/casegenerator.py", line 548, in rknn.base.RKNNlib.app.exporter.ovxlib_case.casegenerator.CaseGenerator._gen_nb_file
    
19. E AttributeError: 'CaseGenerator' object has no attribute 'nbg_graph_file_path'
    
20. E During handling of the above exception, another exception occurred:
    
21. E Traceback (most recent call last):
    
22. E File "rknn/api/rknn_base.py", line 601, in rknn.api.rknn_base.RKNNBase.build
    
23. E File "rknn/api/rknn_base.py", line 414, in rknn.api.rknn_base.RKNNBase._build
    
24. E File "rknn/base/ovxconfiggenerator.py", line 195, in rknn.base.ovxconfiggenerator.generate_vx_config_from_files
    
25. E File "rknn/api/rknn_log.py", line 312, in rknn.api.rknn_log.RKNNLog.e
    
26. E ValueError: Generate nbg failed.
    
27. build model failed.
    

复制代码
请问这种情况应该如何解决？

make: gcc-linaro-6.3.1-2017.05-i686_aarch64-linux-gnugcc: Command not found

已发现是编译器的问题，在环境里看到
export PATH=$PATH:~/rv1109/external/RKNPUTools/rknn-api/Linux/rknn_api_sdk/gcc-linaro-6.3.1-2017.05-i686_aarch64-linux-gnu/bin
export PATH=$PATH:~/rv1109/prebuilts/gcc/linux-x86/arm/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin
环境路径没有问题，在rv1109目录下搜索各种build.sh文件中，没有发现gcc-linaro-6.3.1-2017.05-i686_aarch64-linux-gnugcc这个路径，都是上边两条正确的路径，报错的编译器后缀带有gcc。请问我该如何解决这个问题？