I receive this error when trying to open `bitcoin-qt` when compiling from `master`:

> terminate called after throwing an instance of 'std::runtime_error'
>   what():  JSON value is not a string as expected
> Aborted

No debug info is generated since the application isn't started.

I am running Qubes 4.0 fully updated, in a Debian-11 VM with normal networking. Intel x86_64
#if defined(WIN32)
    
    HANDLE hFile = (HANDLE)_get_osfhandle(_fileno(file));
    LARGE_INTEGER nFileSize;
    int64_t nEndPos = (int64_t)offset + length;
    nFileSize.u.LowPart = nEndPos & 0xFFFFFFFF;
    nFileSize.u.HighPart = nEndPos >> 32;
    SetFilePointerEx(hFile, nFileSize, 0, FILE_BEGIN);
    SetEndOfFile(hFile);
#elif defined(MAC_OSX)
    
    
    
    fstore_t fst;
    fst.fst_flags = F_ALLOCATECONTIG;
    fst.fst_posmode = F_PEOFPOSMODE;
    fst.fst_offset = 0;
    fst.fst_length = length; 
    fst.fst_bytesalloc = 0;
    if (fcntl(fileno(file), F_PREALLOCATE, &fst) == -1) {
        fst.fst_flags = F_ALLOCATEALL;
        fcntl(fileno(file), F_PREALLOCATE, &fst);
    }
    ftruncate(fileno(file), static_cast<off_t>(offset) + length);
#else
    #if defined(HAVE_POSIX_FALLOCATE)
    
    off_t nEndPos = (off_t)offset + length;
    if (0 == posix_fallocate(fileno(file), 0, nEndPos)) return;