Unable to Run WFDB Demo on MATLAB Online

Dear all,

I installed wfdb-app-toolbox-0-10-0 toolbox on MATLAB online with the configuration as follows:

MATLAB_VERSION: '25.2.0.3055257 (R2025b) Update 2'

inOctave: 0

WFDB_VERSION: '[10.5.25]'

WFDB_JAVA_HOME: ' /MATLAB Drive/mcode/'

WFDB_NATIVE_BIN: ' /MATLAB Drive/mcode/nativelibs/linux/'

EXECUTING_DIR: ' null'

osName: 'linux'

fullOsName: ' Linux'

osArch: ' amd64'

customArchFlag: ' false'

OSVersion: ' 6.8.0-1024-aws'

JVMVersion: ' 1.8.0_292]'

MATLAB_PATH: '/MATLAB Drive/mcode/'

WFDB_JAVA_VERSION: 'wfdb-app-JVM7-0-10-0.jar'

DEBUG_LEVEL: 0

NETWORK_WAIT_TIME: 1000

MATLAB_ARCH: 'glnxa64'

WFDB_PATH: '. /MATLAB Drive/mcode/../database/ http://physionet.org/physiobank/database/'

WFDBCAL: ' /MATLAB Drive/mcode//database/wfdbcal'

WFDB_CUSTOMLIB: 0

CACHE_SOURCE: 'http://physionet.org/physiobank/database/'

CACHE_DEST: '/MATLAB Drive/mcode/../database/'

CACHE: 1

When I tried to run wfdbdemo the following error keeps coming up, even if 'mitdb/100' dataset has been downloaded into the "database" folder:

Error using rdsamp (line 203)

Could not find record: mitdb/100. Search path is set to: '. /MATLAB Drive/mcode/../database/ http://physionet.org/physiobank/database/'

I found similar questions in the following links but still failed to work out my problems (e.g., by manually setting WFDB_PATH to 'MATLAB Drive/database'):

How can I read local ecg file using wfdb app? - MATLAB Answers - MATLAB Central

Difficulties with WFDB toolkit in Matlab - MATLAB Answers - MATLAB Central

Can anyone give me some helps? Thanks.

Sincerely,

Johnson