Error in re-building vignettes:
  ...
Warning in block_exec(params) :
  failed to tidy R code in chunk <load_data>
reason: Error in loadNamespace(name) : there is no package called 'formatR'

Loading required package: chipPCR
Loading required package: xtable
Warning in block_exec(params) :
  failed to tidy R code in chunk <problems>
reason: Error in loadNamespace(name) : there is no package called 'formatR'

Warning in smooth.spline(x, y, df = (df.tmp * df.fact)) :
  not using invalid df; must have 1 < df <= n := #{unique x} = 40
Warning in smooth.spline(x, y, df = (df.tmp * df.fact)) :
  not using invalid df; must have 1 < df <= n := #{unique x} = 40
Warning in block_exec(params) :
  failed to tidy R code in chunk <AmpSim_GUI>
reason: Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  failed to tidy R code in chunk <AmpSim_random>
reason: Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  failed to tidy R code in chunk <humanrater_gui>
reason: Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  failed to tidy R code in chunk <MFIaggr_intro>
reason: Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  failed to tidy R code in chunk <MFIaggr_conditions>
reason: Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  failed to tidy R code in chunk <MFIaggr_all>
reason: Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  failed to tidy R code in chunk <MFIaggr_heteroskedasticity>
reason: Error in loadNamespace(name) : there is no package called 'formatR'

Warning in block_exec(params) :
  failed to tidy R code in chunk <plotCurves>
reason: Error in loadNamespace(name) : there is no package called 'formatR'

Warning in fixNA(x, y, spline = TRUE) :
  Sequence of more than 4 missing values in data.
Approximation may not be correct.
Warning in fixNA(x, y, spline = TRUE) :
  Sequence of more than 4 missing values in data.
Approximation may not be correct.
Warning in fixNA(x, y, spline = TRUE) :
  Sequence of more than 4 missing values in data.
Approximation may not be correct.
Warning in fixNA(x, y, spline = TRUE) :
  Sequence of more than 4 missing values in data.
Approximation may not be correct.
Warning in fixNA(x, y, spline = TRUE) :
  Sequence of more than 4 missing values in data.
Approximation may not be correct.
Warning in block_exec(params) :
  failed to tidy R code in chunk <workflow>
reason: Error in loadNamespace(name) : there is no package called 'formatR'

Warning in lmrob.S(x, y, control = control) :
  find_scale() did not converge in 'maxit.scale' (= 200) iterations with tol=1e-10, last rel.diff=0
Warning in lmrob.S(x, y, control = control) :
  find_scale() did not converge in 'maxit.scale' (= 200) iterations with tol=1e-10, last rel.diff=0
Warning in lmrob.S(x, y, control = control) :
  find_scale() did not converge in 'maxit.scale' (= 200) iterations with tol=1e-10, last rel.diff=0
Warning in lmrob.S(x, y, control = control) :
  find_scale() did not converge in 'maxit.scale' (= 200) iterations with tol=1e-10, last rel.diff=0
Warning in lmrob.S(x, y, control = control) :
  find_scale() did not converge in 'maxit.scale' (= 200) iterations with tol=1e-10, last rel.diff=0
Warning in lmrob.S(x, y, control = control) :
  find_scale() did not converge in 'maxit.scale' (= 200) iterations with tol=1e-10, last rel.diff=0
Warning in lmrob.S(x, y, control = control) :
  find_scale() did not converge in 'maxit.scale' (= 200) iterations with tol=1e-10, last rel.diff=0
Warning in lmrob.S(x, y, control = control) :
  find_scale() did not converge in 'maxit.scale' (= 200) iterations with tol=1e-10, last rel.diff=0
Warning in lmrob.S(x, y, control = control) :
  find_scale() did not converge in 'maxit.scale' (= 200) iterations with tol=1e-10, last rel.diff=0
Warning in lmrob.S(x, y, control = control) :
  find_scale() did not converge in 'maxit.scale' (= 200) iterations with tol=1e-10, last rel.diff=0
Warning in lmrob.S(x, y, control = control) :
  find_scale() did not converge in 'maxit.scale' (= 200) iterations with tol=1e-10, last rel.diff=0
Warning in lmrob.S(x, y, control = control) :
  find_scale() did not converge in 'maxit.scale' (= 200) iterations with tol=1e-10, last rel.diff=0
Warning in lf.cov(init, x = x) :
  .vcov.avar1: negative diag(<vcov>) fixed up; consider 'cov=".vcov.w."' instead
Warning in lf.cov(init, x = x) :
  .vcov.avar1: negative diag(<vcov>) fixed up; consider 'cov=".vcov.w."' instead
Warning in block_exec(params) :
  failed to tidy R code in chunk <fixNA_data>
reason: Error in loadNamespace(name) : there is no package called 'formatR'

Quitting from lines 1106-1116 (chipPCR.Rnw) 
Error: processing vignette ‘chipPCR.Rnw’ failed with diagnostics:
there is no package called 'qpcR'
Execution halted