I get an PDF via LaTeX error on some of the Labs when trying to save the lesson.
Does Anybody know how to fix this problem?
It seems to be internal to the course and not a problem with my system since some labs download just fine.
Specific Labs that fail to download (error message follows list) are:
• W1L4 Gradient Decent
• W2L2 Multiple Linear Regression
• W2L3 Feature Scaling and Learning Rate
• W2L4 Feature Engineering and Polynomial Regression
• W2L6 Linear Regression
• W3L2 Sigmoid Function and Logistic Regression
• W3L3 Decision Boundary
• W3L4 Logistic Loss
• W3L5 Cost Function for Logistic regression
• W3L6 Gradient Decent for Logistic Regression
• W3L9 Regularization
• W3L10 Logistic Regression
500 : Internal Server Error
The error was:
nbconvert failed: PDF creating failed, captured latex output:
Failed to run “[‘xelatex’, ‘./notebook.tex’, ‘-quiet’]” command:
This is XeTeX, Version 3.14159265-2.6-0.99998 (TeX Live 2017/Debian) (preloaded format=xelatex)
restricted \write18 enabled.
entering extended mode
(./notebook.tex
LaTeX2e <2017-04-15>
Babel <3.18> and hyphenation patterns for 3 language(s) loaded.
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! LaTeX Error: \mathbf allowed only in math mode.
See the LaTeX manual or LaTeX Companion for explanation.
Type H for immediate help.
…
l.1566 \mathbf{v_m^{(k)}}
$ and (\mathbf{v_m^{(i)}}) :
?
! Emergency stop.
…
l.1566 \mathbf{v_m^{(k)}}
$ and (\mathbf{v_m^{(i)}}) :
Output written on notebook.pdf (20 pages).
Transcript written on notebook.log