Topic: Electrum 2.0 release (Read 11405 times)

I posted a fix to this problem a while back. Just rename the executable to "electrum.exe" and the error you see will go away.

Footnote: Next time you may want to try the excellent search feature that Bitcointalk provides to look for a solution to your problem. Many time the solution is out there if you just take the time to look for it.

I am running electrum 2.6.4. It is now July 20, 2016 and the error is still there. Obviously there has been no effot to fix the problem....so on to a different wallet.


Do you WAN'T to alienate your users? Because this is how you alienate your users.

Is there a limit to the number of accounts a person can create in a single wallet on Electrum 2.3.2 ?

I created two accounts and funded both of them then tried to create a third account but its not being created.

I selected 'New Account' from the menu, entered a name for the account and then nothing happens, no new pending account is being created.

Hi,
XDN-dev team made a DigitalName  JSON alias API for any cryptocurrency http://digitalname.org

With DigitalName you can link your Bitcoin address with any URL.

Here is a first sevrices that use DigitalName API http://xdn.io

New DigitalNote XDN GUI wallet has a digitalname support https://github.com/xdn-project/digitalnotewallet

Will be very glad if your will integrate DigitalName JSON alias API with Electrum.

Thank you.

Sorry it this was already asked, I didn't find it.

Why did you decide to not use BIP39?

The problem is I am not getting this error. I think it has to do something with your installation. Hope you will get an answer/solution from 'btchip'.

@Muhammed: thanks, I will try to get help in the official HW.1 thread
Anyway,  on the same PC under Linux everything is just fine.
Also, under win7 btchip-python is not very stable: I tried it five times: 4 times it worked OK, then it gave:
USBError: [Errno None] libusb0-dll:err [_usb_reap_async] reaping request failed

Please post doubts and questions about HW.1 in official HW.1 thread. https://bitcointalksearch.org/topic/now-available-btchip-ledger-hw1-bitcoin-hardware-wallet-in-a-usb-smartcard-134999

Sorry! I am unable to help you in this. You may want to try wiping the dongle by entering 3 wrong pins and create a new seed with Electrum but I think the problem is something else.

I tried to run pyusb again:

I Googled to this error, and found: http://stackoverflow.com/questions/5152133/pyusb-backend-not-accessible
It said that "You need to install libusb-1.0, libusb-0.1, or openusb as a backend to pyusb."

I downloaded libusb-win32-bin-1.2.6.0 earlier. I tried now:

create a driver kit for
Vendor ID        Product ID      Description
0x2581            0x2B7C          Plug-up

Then installed the created driver.

Now pyusb tests run witjout errors.
Also, btchip-python is operational, gets back the firmware version.


When I start Electrum, and enter the PIN of HW.1, then the following window is displayed:
Computing master public key

and I also get the following error in another window:
[Errno None]  libusb0-dll: err [_usb_reap_async] timeout error

Please help! How to go on?

@Muhammed Zakir:

1. I downloaded https://github.com/signal11/hidapi/archive/hidapi-master.zip
2. cd hidapi-master/windows
3. opened hidapi.sln with Visual Studio 2010 and clicked "Build Solution"
4. cd hidapi-master/windows/Debug, run hidtest.exe
   I got this:

Device Found
  type: 1050 0010
  path: \\?\hid#vid_1050&pid_0010#7&36c90f4b&0&0000#{4d1e55b2-f16f-11cf-88cb-001
111000030}
  serial_number: 0001855185
  Manufacturer: Yubico
  Product:      Yubico Yubikey II
  Release:      233
  Interface:    -1

Device Found
  type: 2581 2b7c
  path: \\?\hid#vid_2581&pid_2b7c#7&3eb2a02&0&0000#{4d1e55b2-f16f-11cf-88cb-0011
11000030}
  serial_number: Plug-up
  Manufacturer: Plug-up
  Product:      Plug-up
  Release:      1
  Interface:    -1

unable to open device

5. copied hidapi.dll and hidapi.lib to c:\Windows\System32

6. Intalled python-2.7.9.amd64.msi
7. Added to PATH C:\Python27\;C:\Python27\Scripts\

8. Installed Microsoft Visual C++ VCForPython27.msi
9. pip install cython
10. downloaded https://github.com/trezor/cython-hidapi/archive/cython-hidapi-master.zip
11. cd cython-hidapi-master
12. python setup.py install

>python setup.py install
running install
running build
running build_ext
cythoning hid.pyx to hid.c
building 'hid' extension
error: Unable to find vcvarsall.bat

13. pip install hidapi
\build\cython-hidapi-master>pip install hidapi --upgrade
Requirement already up-to-date: hidapi in c:\python27\lib\site-packages\hidapi-0
.7.99_5-py2.7-win-amd64.egg
Cleaning up...

14. download https://github.com/walac/pyusb/archive/pyusb-master.zip
15. cd pyusb-master
16. python setup.py install

17. https://github.com/LedgerHQ/btchip-python/archive/btchip-python-master.zip
18. cd btchip-python-master
19. python setup.py install

20. cd samples
21. python getFirmwareVersion.py

\build\btchip-python-master\samples>python getFirmwareVersion.py
Traceback (most recent call last):
  File "getFirmwareVersion.py", line 23, in
    dongle = getDongle(True)
  File "C:\Python27\lib\site-packages\btchip_python-0.1.14-py2.7.egg\btchip\btch
ipComm.py", line 279, in getDongle
    dev = usb.core.find(idVendor=0x2581, idProduct=0x1b7c) # core application, W
inUSB
  File "C:\Python27\lib\site-packages\usb\core.py", line 1221, in find
    raise ValueError('No backend available')
ValueError: No backend available

22. c:\Windows\System32
    delete hidapi.dll, lidapi.lib

23. python getFirmwareVersion.py
    same result

-----

OK, doing it again:

pip uninstall cython
pip install cython

pip uninstall hidapi
pip install hidpai

cd pyusb-master
python setup.py install
cd tests
python testall.py

.E.....
======================================================================
ERROR: runTest (test_util.FindDescriptorTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "e:\Users\Lipi\build\pyusb-master\tests\test_util.py", line 68, in runTes
t
    d = usb.core.find(idVendor=ID_VENDOR)
  File "e:\Users\Lipi\build\pyusb-master\usb\core.py", line 1221, in find
    raise ValueError('No backend available')
ValueError: No backend available

----------------------------------------------------------------------
Ran 7 tests in 0.017s

FAILED (errors=1)

cd btchip-python-master
python setup.py install
cd samples
python getFirmwareVersion.py


e:\build\btchip-python-master\samples>python getFirmwareVersion.py
Traceback (most recent call last):
  File "getFirmwareVersion.py", line 23, in
    dongle = getDongle(True)
  File "C:\Python27\lib\site-packages\btchip_python-0.1.14-py2.7.egg\btchip\btch
ipComm.py", line 279, in getDongle
    dev = usb.core.find(idVendor=0x2581, idProduct=0x1b7c) # core application, W
inUSB
  File "C:\Python27\lib\site-packages\usb\core.py", line 1221, in find
    raise ValueError('No backend available')
ValueError: No backend available

If the dongle is inserted:

e:\Users\Lipi\build\btchip-python-master\samples>python getFirmwareVersion.py
=> e0c4000000

(Hang up)

----------------------------------

Please help!!!

I can't access my PC for a while, so I don't remember each and every dependencies. Anyway, like I said, if you want to install BTChip-python, download it, point to that directory and run python setup.py install. If you unmet dependencies, it will give an error "Import error: No module named ". Search in internet, download zip/.py file and install it by running python setup.py install.

One of the dependencies I missed is Cython-hidapi.

@Muhammed: "IIRC" - I asked you to post a build, not to "If I Remember Correctly"...
How do you set up btchip-python, cython, etc under Windows?
It is still a question. Please help!

IIRC everything is in Python environment. You just need to change directory to the folder you need to install and run python setup.py install in most cases.

Read "README" in BTChip-python Github repo to see dependencies.

https://github.com/LedgerHQ/btchip-python/blob/master/README.md


Thank you!

A short FYI— as of Python 2.7.9, setup tools/pip are (finally!) bundled w/Python (see PEP 477).

@Muhammed: When you will be near your PC, please post me the necessary steps. THANKS!
I do not know how to install e.g. btchip-c-api or btchip-pythopn under windows. Under linux I can use
sudo apt-get install libusb, etc... what should I do under windows? Where are the necessary libraries?
What should I use to compile the sources? What is the compilation environment? mingw?

I am away from my PC, so I can't tell which all dependencies are needed. If a dependency is not installed, it will show when compiling. Download it and install it manually.

Some of the dependencies for Electrum 2.0 are

 • Python 2.7
 • Python setup tools(incl. pip)
 • PyQt
 • ecdsa
 • slowaes
 • BTChip-python API.

I can't recall all dependencies. Like I said, it will show "Import error: No module named abc" if you haven't installed "abc". When it does, search that module in internet, download and install it.


Haven't you installed BTChip-python?

P.S. If you have successfully compiled Electrum and want to auto-start it when windows open, follow this:

#1. Create a ".bat" file and put this code.
#2. Click the Start button, click All Programs, right-click the Startup folder and then click Open.
#3. Drag the .bat folder file to Startup folder you opened.

@Muhammed: How did you compile it under Windows? Can you help me?
I have installed electrum-2.0-setup.exe under win7 professional.
When I start the program, and  the "Select your hardware wallet" screen is displayed, only Trezor wallet can be selected.

Didn't get your first question. I compiled myself and yes, it is Win7(Ultimate).

@Muhammed: Fine. Did you install anything beside Electrum? Is it a Win7 system?

In 2.0, HW.1 works fine for me. BTChip C API isn't needed for Electrum.