Can not install Quantstrat from github - r

Question

Have followed the processes outlined on the Github repo.
Have tried installed blotter first and then quantstrat. Doesnt work
Have then moved to installing all dependencies first.
install.packages("FinancialInstrument",repos="https://github.com/braverock/FinancialInstrument")
When trying to install from Github using devtools get the following error.
devtools::install_github("braverock/blotter")
Downloading GitHub repo braverock/blotter#master
✓ checking for file ‘/private/var/folders/_8/zy8__ntx5cx0_lnbybvfjhsr0000gp/T/Rtmp0wtY3O/remotes2547e2faf85/braverock-blotter-67be2c8/DESCRIPTION’ (400ms)
─ preparing ‘blotter’:
✓ checking DESCRIPTION meta-information ...
─ cleaning src
─ checking for LF line-endings in source and make files and shell scripts
─ checking for empty or unneeded directories
─ looking to see if a ‘data/datalist’ file should be added
─ building ‘blotter_0.14.8.tar.gz’
installing source package ‘blotter’ ...
** using staged installation
** libs
clang -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include -fPIC -Wall -g -O2 -c calcPosAvgCost.c -o calcPosAvgCost.o
calcPosAvgCost.c:31:12: warning: using integer absolute value function 'abs' when argument is of floating point type [-Wabsolute-value]
if(abs(d_PrevPosQty) > abs(d_PosQty[i])){
^
calcPosAvgCost.c:31:12: note: use function 'fabs' instead
if(abs(d_PrevPosQty) > abs(d_PosQty[i])){
^~~
fabs
calcPosAvgCost.c:31:32: warning: using integer absolute value function 'abs' when argument is of floating point type [-Wabsolute-value]
if(abs(d_PrevPosQty) > abs(d_PosQty[i])){
^
calcPosAvgCost.c:31:32: note: use function 'fabs' instead
if(abs(d_PrevPosQty) > abs(d_PosQty[i])){
^~~
fabs
2 warnings generated.
clang -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include -fPIC -Wall -g -O2 -c init.c -o init.o
clang -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/Library/Frameworks/R.framework/Resources/lib -L/usr/local/lib -o blotter.so calcPosAvgCost.o init.o -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation
installing to /Library/Frameworks/R.framework/Versions/3.6/Resources/library/00LOCK-blotter/00new/blotter/libs
** R
** data
** demo
** byte-compile and prepare package for lazy loading
Error: (converted from warning) package ‘quantmod’ was built under R version 3.6.2
Execution halted
ERROR: lazy loading failed for package ‘blotter’
removing ‘/Library/Frameworks/R.framework/Versions/3.6/Resources/library/blotter’
Error: Failed to install 'blotter' from GitHub:
(converted from warning) installation of package ‘/var/folders/_8/zy8__ntx5cx0_lnbybvfjhsr0000gp/T//Rtmp0wtY3O/file25475cac4c09/blotter_0.14.8.tar.gz’ had non-zero exit status

Answer 1

I fixed the issue using Sys.setenv(R_REMOTES_NO_ERRORS_FROM_WARNINGS=TRUE) from https://github.com/r-lib/remotes/issues/434