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For the first time a complete set of the most recent direct data on primarycosmic ray spectra is used as input into calculations of muon flux at sea levelin wide energy range $E_\mu=1-3\cdot10^5$ GeV. Computations have been performedwith the CORSIKA/QGSJET and CORSIKA/VENUS codes. The comparison of the obtainedmuon intensity with the data of muon experiments shows, that measurements ofprimary nuclei spectra conform to sea level muon data only up to several tensof GeV and result in essential deficit of muons at higher energies. As itfollows from our examination, uncertainties in muon flux measurements and inthe description of nuclear cascades development are not suitable to explainthis contradiction, and the only remaining factor, leading to this situation,is underestimation of primary light nuclei fluxes. We have consideredsystematic effects, that may distort the results of the primary cosmic raymeasurements with the application of the emulsion chambers. We suggest, thatre-examination of these measurements is required with the employment ofdifferent hadronic interaction models. Also, in our point of view, it isnecessary to perform estimates of possible influence of the fact, that sizablefraction of events, identified as protons, actually are antiprotons. Study ofthese cosmic ray component begins to attract much attention, but today nothingdefinite is known for the energies $>40$ GeV. In any case, to realize whetherthe mentioned, or some other reasons are the sources of disagreement of thedata on primaries with the data on muons, the indicated effects should bethoroughly analyzed

On inconsistency of experimental data on primary nuclei spectra with sea level muon intensity measurements