PVS Studio throws AttributeError: 'NoneType' object has no attribute 'lower'

Configuration

Operating system:

PlatformIO Version (platformio --version):

Description of problem

The error itself seems to be similar to this (closed) issue: https://github.com/platformio/platformio-core/issues/3989

I also have contacted the PVS Studio team about this and their reply was:

Hello, Gijs.

We built and analyzed your project with settings as you described on the screenshot. It seems that the PlatformIO starts preprocessing incorrectly which causes fail of a preprocessor (non-zero return code) and an error log window to appear instead of the normal interface.

Unfortunately, this problem is specific for your project and doesn't reproduce with clear projects. Perhaps it will be a good idea to open an issue at the PlatformIO repository.

It is about my project ESPEasy: https://github.com/letscontrolit/ESPEasy

I do have several PIO envs defined for checking with PVS Studio. They all have names starting with: spec_debug_*

A while ago, the PVS Studio inspect option was running, but I could not browse through the found issues anymore. Still the error output contained all PVS Studio output, so I could browse through it by copying it to a notepad and process them by hand.

N.B. Due to a very busy time with me moving to my rebuilt house, I had not yet found the time to open this issue. My mail contact about this with the PVS Studio team was in the first half of March.

Hi @TD-er ! So how do I reproduce the issue? What environment to run? I'd appreciate a bit more details.

Open my project in VS code.
Make sure you have a license key in the directory one level up of where you did checkout the ESPEasy repository.
Run "inspect" on any of the "spec_debug..." envs

And then observe the errors:

The actual error output:

Error: Checking spec_debug_custom_ESP32_4M316k > pvs-studio (platform: espressif32 @ 3.5.0; board: esp32dev; framework: arduino)
--------------------------------------------------------------------------------
C:\Users\gijsn\.platformio\packages\tool-pvs-studio\x64\pvs-studio --skip-cl-exe yes --language C++ --preprocessor gcc --cfg C:\Users\gijsn\AppData\Local\Temp\piochecke7gqrhkl\r6cehb28.cfg --source-file c:\GitHub\TD-er\ESPEasy\src\ESPEasy-Globals.cpp --i-file C:\Users\gijsn\AppData\Local\Temp\piochecke7gqrhkl\vr7gj19w.i --output-file C:\Users\gijsn\AppData\Local\Temp\piochecke7gqrhkl\9m3zaxu4.pvs --platform=arm --analysis-mode=4 --errors-off=V532,V586,V795 --lic-file=../pvs_studio.lic

Error: Traceback (most recent call last):
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\platformio\__main__.py", line 121, in main
cli() # pylint: disable=no-value-for-parameter
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\click\core.py", line 1130, in __call__
return self.main(*args, **kwargs)
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\click\core.py", line 1055, in main
rv = self.invoke(ctx)
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\platformio\commands\__init__.py", line 44, in invoke
return super(PlatformioCLI, self).invoke(ctx)
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\click\core.py", line 1657, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\click\core.py", line 1404, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\click\core.py", line 760, in invoke
return __callback(*args, **kwargs)
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\platformio\commands\check\command.py", line 135, in cli
rc = ct.check(
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\platformio\commands\check\tools\pvsstudio.py", line 242, in check
self._process_defects(self.parse_defects(self._tmp_output_file))
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\platformio\commands\check\tools\pvsstudio.py", line 135, in parse_defects
DefectItem(
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\platformio\commands\check\defect.py", line 54, in __init__
if file.lower().startswith(get_project_dir().lower()):
AttributeError: 'NoneType' object has no attribute 'lower'

============================================================

An unexpected error occurred. Further steps:

* Verify that you have the latest version of PlatformIO using
`pip install -U platformio` command

* Try to find answer in FAQ Troubleshooting section
https://docs.platformio.org/page/faq.html

* Report this problem to the developers
https://github.com/platformio/platformio-core/issues

============================================================

Just curious, what was the bug? Was it something strange I'm doing in my project?

TBH, I wasn't able to reproduce it, although I figured out where it may fail. Anyway, please do retest with the latest development version of the PlatformIO. Please note I also updated the PVS package to the latest 7.18.

I just tested with PIO 6.0.1 and I'm sorry to report that it still isn't fixed :(

Error: Checking spec_debug_custom_ESP32_4M316k > pvs-studio (platform: https://github.com/tasmota/platform-espressif32/releases/download/v.2.0.3/platform-espressif32-v.2.0.3.zip; board: esp32dev; framework: arduino)
--------------------------------------------------------------------------------
Tool Manager: Installing platformio/tool-pvs-studio @ ~7.18.0
Downloading
Unpacking
Tool Manager: tool-pvs-studio@7.18.59865 has been installed!
C:\Users\gijsn\.platformio\packages\tool-pvs-studio\x64\pvs-studio --skip-cl-exe yes --language C++ --preprocessor gcc --cfg C:\Users\gijsn\AppData\Local\Temp\piocheckxxhozqsj\wxa0qeer.cfg --source-file c:\GitHub\TD-er\ESPEasy\src\ESPEasy-Globals.cpp --i-file C:\Users\gijsn\AppData\Local\Temp\piocheckxxhozqsj\e227jwtn.i --output-file C:\Users\gijsn\AppData\Local\Temp\piocheckxxhozqsj\5yo3eacu.pvs --platform=arm --analysis-mode=4 --errors-off=V532,V586,V795 --lic-file=../pvs_studio.lic

Error: Traceback (most recent call last):
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\platformio\__main__.py", line 102, in main
cli() # pylint: disable=no-value-for-parameter
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\click\core.py", line 1130, in __call__
return self.main(*args, **kwargs)
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\click\core.py", line 1055, in main
rv = self.invoke(ctx)
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\platformio\commands\__init__.py", line 44, in invoke
return super().invoke(ctx)
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\click\core.py", line 1657, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\click\core.py", line 1404, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\click\core.py", line 760, in invoke
return __callback(*args, **kwargs)
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\platformio\commands\check\command.py", line 136, in cli
rc = ct.check(
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\platformio\commands\check\tools\pvsstudio.py", line 247, in check
self._process_defects(self.parse_defects(self._tmp_output_file))
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\platformio\commands\check\tools\pvsstudio.py", line 140, in parse_defects
DefectItem(
File "C:\Users\gijsn\.platformio\penv\lib\site-packages\platformio\commands\check\defect.py", line 54, in __init__
if file.lower().startswith(get_project_dir().lower()):
AttributeError: 'NoneType' object has no attribute 'lower'

============================================================

An unexpected error occurred. Further steps:

* Verify that you have the latest version of PlatformIO using
`pip install -U platformio` command

* Try to find answer in FAQ Troubleshooting section
https://docs.platformio.org/page/faq.html

* Report this problem to the developers
https://github.com/platformio/platformio-core/issues

============================================================

Not 100% sure what I may have changed, but now I do get some usable output from PVS Studio, but the output is not browseble in the PIO Home inspect window.

What I did (and have tried several times):

Deleted everything related to PlatformIO and reinstalled
Significantly reduced the requirements.txt files for my project + updated packages
Recreated the license file (read: threw away too many files) for PVS Studio
Probably something else

The output is like this:

Error: Checking spec_debug_custom_ESP8266_4M1M > pvs-studio (platform: espressif8266@2.6.3; board: esp8266_4M1M_board; framework: arduino)
--------------------------------------------------------------------------------
C:\Users\gijsn\.platformio\packages\tool-pvs-studio\x64\pvs-studio --skip-cl-exe yes --language C++ --preprocessor gcc --cfg C:\Users\gijsn\AppData\Local\Temp\piocheckx7kocp9x\ur0uiu79.cfg --source-file c:\GitHub\TD-er\ESPEasy\src\ESPEasy-Globals.cpp --i-file C:\Users\gijsn\AppData\Local\Temp\piocheckx7kocp9x\5wf2b0yt.i --output-file C:\Users\gijsn\AppData\Local\Temp\piocheckx7kocp9x\irqmzngu.pvs --platform=arm --analysis-mode=4 --errors-off=V532,V586,V795 --lic-file=../pvs_studio.lic
C:\Users\gijsn\.platformio\packages\tool-pvs-studio\x64\pvs-studio --skip-cl-exe yes --language C++ --preprocessor gcc --cfg C:\Users\gijsn\AppData\Local\Temp\piocheckx7kocp9x\ur0uiu79.cfg --source-file c:\GitHub\TD-er\ESPEasy\src\ESPEasy.ino --i-file C:\Users\gijsn\AppData\Local\Temp\piocheckx7kocp9x\5wf2b0yt.i --output-file C:\Users\gijsn\AppData\Local\Temp\piocheckx7kocp9x\irqmzngu.pvs --platform=arm --analysis-mode=4 --errors-off=V532,V586,V795 --lic-file=../pvs_studio.lic
C:\Users\gijsn\.platformio\packages\tool-pvs-studio\x64\pvs-studio --skip-cl-exe yes --language C++ --preprocessor gcc --cfg C:\Users\gijsn\AppData\Local\Temp\piocheckx7kocp9x\ur0uiu79.cfg --source-file c:\GitHub\TD-er\ESPEasy\src\ESPEasy_common.cpp --i-file C:\Users\gijsn\AppData\Local\Temp\piocheckx7kocp9x\5wf2b0yt.i --output-file C:\Users\gijsn\AppData\Local\Temp\piocheckx7kocp9x\irqmzngu.pvs --platform=arm --analysis-mode=4 --errors-off=V532,V586,V795 --lic-file=../pvs_studio.lic
C:\Users\gijsn\.platformio\packages\tool-pvs-studio\x64\pvs-studio --skip-cl-exe yes --language C++ --preprocessor gcc --cfg C:\Users\gijsn\AppData\Local\Temp\piocheckx7kocp9x\ur0uiu79.cfg --source-file c:\GitHub\TD-er\ESPEasy\src\_C001.cpp --i-file C:\Users\gijsn\AppData\Local\Temp\piocheckx7kocp9x\5wf2b0yt.i --output-file C:\Users\gijsn\AppData\Local\Temp\piocheckx7kocp9x\irqmzngu.pvs --platform=arm --analysis-mode=4 --errors-off=V532,V586,V795 --lic-file=../pvs_studio.lic

<cut about 2200 lines>

src\src\Globals\ESPEasyWiFiEvent.h:26: [low:note] The 'IPAddress' class implements a copy constructor, but lacks the copy assignment operator. It is dangerous to use such a class. [V690]
src\src\WebServer_tmp\__tmpfile.cpp:4665: [medium:warning] Two or more case-branches perform the same actions. Check lines: 4665, 4738 [V1037]
src\src\WebServer_tmp\__tmpfile.cpp:9879: [high:error] Expression 'refreshCount != 0' is always false. [V547]
src\src\WebServer_tmp\__tmpfile.cpp:10981: [low:note] Consider checking for misprints. It's possible that the 'value_msec' should be checked here. [V1051]
src\src\WebServer_tmp\__tmpfile.cpp:11654: [medium:warning] A part of conditional expression is always true: !hasWiFiCredentials. [V560]
src\src\WebServer_tmp\__tmpfile.cpp:12791: [medium:warning] The 'varName' function argument possesses the same name as one of the class members, which can result in a confusion. [V688]
src\src\WebServer_tmp\__tmpfile.cpp:12064: [low:note] It is odd that the body of 'json_prop' function is fully equivalent to the body of 'json_number' function. [V524]
src\src\DataStructs_templ\SettingsStruct.cpp:14: [low:note] It is possible that not all members of a class are initialized inside the constructor. Consider inspecting: PID, Version, Build, IP, Gateway, Subnet, ... [V730]
Error: pvs-studio failed to perform check! Please examine tool output in verbose mode.

Component HIGH MEDIUM LOW
--------------------------------------------------------- ------ -------- -----
.pio\libdeps\spec_debug_custom_ESP8266_4M1M\ESPeasySerial 242 0 0
src 0 0 1
src\src\Commands 0 3 22
src\src\Commands_tmp 0 3 0
src\src\DataStructs 0 0 343
src\src\DataStructs_templ 0 0 303
src\src\DataStructs_tmp 0 0 1
src\src\DataTypes 0 0 1
src\src\DataTypes_tmp 0 0 1
src\src\ESPEasyCore 0 1 2
src\src\Globals 1 2 32
src\src\Globals_tmp 1 2 2
src\src\Helpers 0 7 600
src\src\Helpers_tmp 0 7 12
src\src\Static 0 1 0
src\src\WebServer 1 3 2
src\src\WebServer_tmp 1 3 2

Total 246 32 1324

========================= [FAILED] Took 525.62 seconds =========================
Environment Tool Status Duration
---------------------------------------- ---------- -------- ------------
custom_ESP8266_4M1M cppcheck IGNORED
custom_IR_ESP8266_4M1M cppcheck IGNORED
custom_alt_wifi_ESP8266_4M1M cppcheck IGNORED
custom_302_ESP8266_4M1M cppcheck IGNORED
custom_beta_ESP8266_4M1M cppcheck IGNORED
custom_beta_IR_ESP8266_4M1M cppcheck IGNORED
custom_beta_debug_ESP8266_4M1M cppcheck IGNORED
custom_ESP8266_4M2M cppcheck IGNORED
custom_ESP8266_4M2M_LittleFS cppcheck IGNORED
custom_ESP8266_1M cppcheck IGNORED
custom_alt_wifi_ESP8266_1M cppcheck IGNORED
custom_beta_ESP8266_1M cppcheck IGNORED
custom_ESP8266_2M256 cppcheck IGNORED
normal_ESP8266_1M cppcheck IGNORED
normal_alt_wifi_ESP8266_1M cppcheck IGNORED
normal_ESP8266_1M_VCC cppcheck IGNORED
normal_alt_wifi_ESP8266_1M_VCC cppcheck IGNORED
normal_ESP8285_1M cppcheck IGNORED
normal_WROOM02_2M256 cppcheck IGNORED
normal_ESP8266_4M1M cppcheck IGNORED
normal_ESP8266_4M1M_VCC cppcheck IGNORED
normal_alt_wifi_ESP8266_4M1M cppcheck IGNORED
normal_302_ESP8266_4M1M cppcheck IGNORED
normal_beta_ESP8266_4M1M cppcheck IGNORED
normal_beta_ESP8266_16M_LittleFS cppcheck IGNORED
minimal_core_274_ESP8266_1M_OTA_Domoticz cppcheck IGNORED
minimal_core_274_ESP8285_1M_OTA_Domoticz cppcheck IGNORED
minimal_core_302_ESP8266_1M_OTA_Domoticz cppcheck IGNORED
minimal_core_302_ESP8285_1M_OTA_Domoticz cppcheck IGNORED
minimal_core_274_ESP8266_1M_OTA_FHEM_HA cppcheck IGNORED
minimal_core_274_ESP8285_1M_OTA_FHEM_HA cppcheck IGNORED
minimal_core_302_ESP8266_1M_OTA_FHEM_HA cppcheck IGNORED
minimal_core_302_ESP8285_1M_OTA_FHEM_HA cppcheck IGNORED
minimal_IRext_ESP8266_1M cppcheck IGNORED
minimal_IRext_ESP8266_4M1M cppcheck IGNORED
minimal_IRext_ESP8266_4M2M cppcheck IGNORED
normal_IRext_no_rx_ESP8266_4M2M cppcheck IGNORED
test_A_ESP8266_4M1M cppcheck IGNORED
test_B_ESP8266_4M1M cppcheck IGNORED
test_C_ESP8266_4M1M cppcheck IGNORED
test_D_ESP8266_4M1M cppcheck IGNORED
test_E_ESP8266_4M1M cppcheck IGNORED
test_A_ESP8266_4M1M_VCC cppcheck IGNORED
test_B_ESP8266_4M1M_VCC cppcheck IGNORED
test_C_ESP8266_4M1M_VCC cppcheck IGNORED
test_D_ESP8266_4M1M_VCC cppcheck IGNORED
test_E_ESP8266_4M1M_VCC cppcheck IGNORED
test_A_alt_wifi_ESP8266_4M1M_VCC cppcheck IGNORED
test_B_alt_wifi_ESP8266_4M1M_VCC cppcheck IGNORED
test_C_alt_wifi_ESP8266_4M1M_VCC cppcheck IGNORED
test_D_alt_wifi_ESP8266_4M1M_VCC cppcheck IGNORED
test_E_alt_wifi_ESP8266_4M1M_VCC cppcheck IGNORED
energy_ESP8266_4M1M cppcheck IGNORED
display_ESP8266_4M1M cppcheck IGNORED
hard_SONOFF_POW_4M1M cppcheck IGNORED
hard_other_POW_ESP8285_1M cppcheck IGNORED
hard_Shelly_1_2M256 cppcheck IGNORED
hard_Shelly_PLUG_S_2M256 cppcheck IGNORED
hard_Ventus_W266_1M cppcheck IGNORED
hard_LCtech_relay_x2_1M cppcheck IGNORED
custom_ESP32_4M316k cppcheck IGNORED
custom_ESP32_4M316k_LittleFS cppcheck IGNORED
custom_ESP32_16M8M_LittleFS cppcheck IGNORED
custom_IR_ESP32_4M316k cppcheck IGNORED
normal_ESP32_4M316k cppcheck IGNORED
normal_ESP32_4M316k_LittleFS cppcheck IGNORED
test_A_ESP32_4M316k cppcheck IGNORED
test_B_ESP32_4M316k cppcheck IGNORED
test_C_ESP32_4M316k cppcheck IGNORED
test_D_ESP32_4M316k cppcheck IGNORED
test_A_ESP32_IRExt_4M316k cppcheck IGNORED
test_B_ESP32_IRExt_4M316k cppcheck IGNORED
test_C_ESP32_IRExt_4M316k cppcheck IGNORED
test_D_ESP32_IRExt_4M316k cppcheck IGNORED
energy_ESP32_4M316k cppcheck IGNORED
display_ESP32_4M316k cppcheck IGNORED
custom_ESP32_4M316k_ETH cppcheck IGNORED
normal_ESP32_4M316k_ETH cppcheck IGNORED
test_A_ESP32_4M316k_ETH cppcheck IGNORED
test_B_ESP32_4M316k_ETH cppcheck IGNORED
test_C_ESP32_4M316k_ETH cppcheck IGNORED
test_D_ESP32_4M316k_ETH cppcheck IGNORED
max_ESP32_16M1M cppcheck IGNORED
max_ESP32_16M1M_ETH cppcheck IGNORED
max_ESP32_16M8M_LittleFS cppcheck IGNORED
max_ESP32_16M8M_LittleFS_ETH cppcheck IGNORED
custom_ESP32s2_4M316k cppcheck IGNORED
custom_IR_ESP32s2_4M316k cppcheck IGNORED
normal_ESP32s2_4M316k cppcheck IGNORED
test_A_ESP32s2_4M316k cppcheck IGNORED
test_B_ESP32s2_4M316k cppcheck IGNORED
test_C_ESP32s2_4M316k cppcheck IGNORED
test_D_ESP32s2_4M316k cppcheck IGNORED
energy_ESP32s2_4M316k cppcheck IGNORED
display_ESP32s2_4M316k cppcheck IGNORED
spec_debug_custom_ESP8266_4M1M pvs-studio FAILED 00:08:45.619
spec_debug_custom_IR_ESP8266_4M1M pvs-studio IGNORED
spec_debug_beta_custom_ESP8266_4M1M pvs-studio IGNORED
spec_debug_custom_ESP32_4M316k pvs-studio IGNORED
spec_debug_max_ESP32_16M8M pvs-studio IGNORED
spec_memanalyze_ESP8266 cppcheck IGNORED
==================== 1 failed, 0 succeeded in 00:08:45.619 ====================

And even more weird... I now ran another of my special debug envs:

So I'm a bit lost to why it now is working. All I can think of is that after a full cleaning session, you usually need 2 or 3 builds to make a normal build. Cleaning is deleting these folders:

platformio / platformio-core

PVS Studio throws AttributeError: 'NoneType' object has no attribute 'lower' #4237

Configuration

Description of problem