Acsell
June 28, 2023, 11:25am
1
local time = tostring(os.time())
Lua: ./scripts/testScript.lua:113: attempt to index a nil value (global ‘os’)
What should I do?
Can I read the file located in the same folder with the script, if so, how?
iampete
June 28, 2023, 12:03pm
2
We don’t have the os bindings as were not running on a compatible operating system. There are a number of other time related bindings you can use. millis() and micros() for example. File access works as normal.
Acsell
June 28, 2023, 12:28pm
3
I’m sorry, I didn’t understand exactly how I can read the file, I’ll be glad to see the code example.
Acsell
June 28, 2023, 12:29pm
4
I’m sorry, I didn’t understand exactly how I can read the file, I’ll be glad to see the code example. )
iampete
June 28, 2023, 12:40pm
5
This example reads from a file:
-- Example of loading a mission from the SD card using Scripting
-- Would be trivial to select a mission based on scripting params or RC switch
-- luacheck: only 0
local function read_mission(file_name)
-- Open file
file = assert(io.open(file_name), 'Could not open :' .. file_name)
-- check header
assert(string.find(file:read('l'),'QGC WPL 110') == 1, file_name .. ': incorrect format')
-- clear any existing mission
assert(mission:clear(), 'Could not clear current mission')
-- read each line and write to mission
local item = mavlink_mission_item_int_t()
local index = 0
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Acsell
June 28, 2023, 1:30pm
6
The code throws this error
Acsell
June 28, 2023, 1:42pm
7
As I understand it, the error occurs due to the fact that I move the file "mission1.txt " to the folder in the script, while this file should be stored on the SD card