I Need Help To Start Ccminer

ccminer is for Nvidia cards.

What OS are you running ?
What GPU do you have ?
What GPU drivers ?

Spoiler: decred.cu code

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...
__host__
void decred_cpu_setBlock_52(uint32_t *penddata, const uint32_t *midstate, const uint32_t *ptarget)
{
uint32_t _ALIGN(64) data[24];
memcpy(data, midstate, 32);
// pre swab32
for (int i=0; i<13; i++)
data[8+i] = swab32(penddata);
data[21] = 0x80000001;
data[22] = 0;
data[23] = 0x000005a0;
CUDA_SAFE_CALL(cudaMemcpyToSymbol(d_data, data, 32 + 64, 0, cudaMemcpyHostToDevice));
}

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...

static bool init[MAX_GPUS] = { 0 };

// nonce position is different in decred
#define DCR_NONCE_OFT32 35

extern "C" int scanhash_decred(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done)
{
uint32_t _ALIGN(64) endiandata[48];
uint32_t _ALIGN(64) midstate[8];

uint32_t *pdata = work->data;
uint32_t *ptarget = work->target;
uint32_t *pnonce = &pdata[DCR_NONCE_OFT32];

const uint32_t first_nonce = *pnonce;
uint64_t targetHigh = ((uint64_t*)ptarget)[3];

int dev_id = device_map[thr_id];
int intensity = (device_sm[dev_id] > 500 && !is_windows()) ? 29 : 25;
if (device_sm[dev_id] < 350) intensity = 22;

uint32_t throughput = cuda_default_throughput(thr_id, 1U << intensity);
if (init[thr_id]) throughput = min(throughput, max_nonce - first_nonce);

int rc = 0;

if (opt_benchmark) {
targetHigh = 0x1ULL << 32;
ptarget[6] = swab32(0xff);
}

if (!init[thr_id])
{
cudaSetDevice(dev_id);
if (opt_cudaschedule == -1 && gpu_threads == 1) {
cudaDeviceReset();
// reduce cpu usage (linux)
cudaSetDeviceFlags(cudaDeviceScheduleBlockingSync);
cudaDeviceSetCacheConfig(cudaFuncCachePreferL1);
CUDA_LOG_ERROR();
}

CUDA_CALL_OR_RET_X(cudaMalloc(&d_resNonce[thr_id], NBN * sizeof(uint32_t)), -1);
CUDA_CALL_OR_RET_X(cudaMallocHost(&h_resNonce[thr_id], NBN * sizeof(uint32_t)), -1);
init[thr_id] = true;
}

memcpy(endiandata, pdata, 180);
decred_midstate_128(midstate, endiandata);
decred_cpu_setBlock_52(&pdata[32], midstate, ptarget);
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I'd say your card is very old, but you may try to download latest drivers from here :
http://www.nvidia.com/Download/index.aspx?lang=en-us
Select 500 series.

 

I have the same problem using a GTX650 ...
O.S. : Windows 7 64x
Updated drivers .

 

Bump...
Same problem!
I'm using a GTX550TI and a GTX650
Well it work with the GTX650 but I need to take only this one.
The problem is that I'm using that one for everything else than mining...
Help will be very appreciate, thank you very much