Traceback (most recent call last):

 "/usr/local/lib/python2.7/dist-packages/nose/case.py", line 197, in runTest
self.test(*self.arg)

 "/usr/local/lib/python2.7/dist-packages/sklearn/cluster/tests/test_spectral.py", line 66, in test_spectral_lobpcg_mode
random_state=0, eigen_solver="lobpcg")

 "/usr/local/lib/python2.7/dist-packages/sklearn/cluster/spectral.py", line 268, in spectral_clustering
eigen_tol=eigen_tol, drop_first=False)

 "/usr/local/lib/python2.7/dist-packages/sklearn/manifold/spectral_embedding_.py", line 303, in spectral_embedding
largest=False, maxiter=2000)

 "/usr/lib/python2.7/dist-packages/scipy/sparse/linalg/eigen/lobpcg/lobpcg.py", line 411, in lobpcg
activeBlockVectorBP, retInvR=True)

 "/usr/lib/python2.7/dist-packages/scipy/sparse/linalg/eigen/lobpcg/lobpcg.py", line 148, in b_orthonormalize
gramVBV = sla.cholesky(gramVBV)

 "/usr/lib/python2.7/dist-packages/scipy/linalg/decomp_cholesky.py", line 81, in cholesky
check_finite=check_finite)

 "/usr/lib/python2.7/dist-packages/scipy/linalg/decomp_cholesky.py", line 30, in _cholesky
raise LinAlgError("%d-th leading minor not positive definite" % info)LinAlgError: 2-th leading minor not positive definite
Traceback (most recent call last):


 "/home/user/.local/lib/python3.7/site-packages/youtube_dl/YoutubeDL.py", line 796, in extract_info

ie_result = ie.extract(url)


 "/home/user/.local/lib/python3.7/site-packages/youtube_dl/extractor/common.py", line 529, in extract

ie_result = self._real_extract(url)


 "/home/user/.local/lib/python3.7/site-packages/youtube_dl/extractor/youtube.py", line 1973, in _real_extract

encrypted_sig, video_id, player_url, age_gate)


 "/home/user/.local/lib/python3.7/site-packages/youtube_dl/extractor/youtube.py", line 1336, in _decrypt_signature

'Signature extraction failed: ' + tb, cause=e)
youtube_dl.utils.ExtractorError: Signature extraction failed: Traceback (most recent call last):
