CODEWITHSUNDEEP
pythonnxtpyusb
user1130772
user1130772

Reputation: 437

nxt-py no backends error

i am trying to run one of the example scripts for nxt py library using pyusb. whenever i try to run the examples i get the following error:

USB module unavailable, not searching there
Bluetooth module unavailable, not searching there
Traceback (most recent call last):
File "C:\Documents and Settings\*\Desktop\nxt-python-2.2.1\examples\mary.py", line
15, in <module>
b = nxt.locator.find_one_brick()
File "C:\Python27\lib\site-packages\nxt\locator.py", line 112, in find_one_brick
for s in find_bricks(host, name, silent, method):
File "C:\Python27\lib\site-packages\nxt\locator.py", line 80, in find_bricks
raise NoBackendError("No selected backends are available! Did you install the comm
modules?")
NoBackendError: No selected backends are available! Did you install the comm modules?

i have no idea how to fix this and i was wondering if there was any other way than just switching to bluetooth?

Upvotes: 2

Views: 1824

Answers (1)

Andrej Baran
Andrej Baran

Reputation: 56

USB and Bluetooth are unavailable. You need to install python modules to be able to run examples. Here is installation guide, choose your operating system.

For me (mac os x) works only fantomusb. Also I needed to set attributes for brick locator to find it trought fantomusb.

b = nxt.locator.find_one_brick(name="NXT", strict=True, method=nxt.locator.Method(bluetooth=False, fantomusb=True, fantombt=False, usb=False))

Upvotes: 1

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