diff --git a/library/src/main/ets/components/imageknife/utils/ParseImageUtil.ets b/library/src/main/ets/components/imageknife/utils/ParseImageUtil.ets
index a3950c6..1168ca4 100644
--- a/library/src/main/ets/components/imageknife/utils/ParseImageUtil.ets
+++ b/library/src/main/ets/components/imageknife/utils/ParseImageUtil.ets
@@ -43,7 +43,7 @@ export class ParseImageUtil implements IParseImage<PixelMap> {
         editable: true,
         desiredSize: defaultSize
       };
-      if(request.downsampType.getName()!==undefined && request.downsampType.getName()!=='DownsampleNone'){
+      if(request?.downsampType.getName()!==undefined && request?.downsampType.getName()!=='DownsampleNone'){
         const b:ESObject = new Downsampler().calculateScaling(imageinfo, hValue, wValue,request)
         opts= {
           editable: true,
diff --git a/library/src/main/ets/components/imageknife/utils/gif/GIFParseImpl.ets b/library/src/main/ets/components/imageknife/utils/gif/GIFParseImpl.ets
index b1abf9d..6bdc0f0 100644
--- a/library/src/main/ets/components/imageknife/utils/gif/GIFParseImpl.ets
+++ b/library/src/main/ets/components/imageknife/utils/gif/GIFParseImpl.ets
@@ -53,7 +53,7 @@ export class GIFParseImpl implements IParseGif {
     imageSource.getImageInfo().then((value) => {
       hValue = Math.round(value.size.height);
       wValue = Math.round(value.size.height);
-      if ( _request.downsampType.getName()!==undefined && _request.downsampType.getName()!=='DownsampleNone') {
+      if ( _request?.downsampType.getName()!==undefined && _request?.downsampType.getName()!=='DownsampleNone') {
         const b: ESObject = new Downsampler().calculateScaling(imageinfo, Math.round(value.size.height), Math.round(value.size.width), _request)
         decodeOpts = {
           sampleSize: 1,
diff --git a/library/src/main/ets/components/imageknife/utils/svg/SVGParseImpl.ets b/library/src/main/ets/components/imageknife/utils/svg/SVGParseImpl.ets
index 4c87d92..83abcbd 100644
--- a/library/src/main/ets/components/imageknife/utils/svg/SVGParseImpl.ets
+++ b/library/src/main/ets/components/imageknife/utils/svg/SVGParseImpl.ets
@@ -36,7 +36,7 @@ export class SVGParseImpl implements IParseSvg {
         editable: true,
         desiredSize: defaultSize
       };
-      if (request.downsampType.getName()!==undefined && request.downsampType.getName()!=='DownsampleNone') {
+      if (request?.downsampType.getName()!==undefined && request?.downsampType.getName()!=='DownsampleNone') {
         const b: ESObject = new Downsampler().calculateScaling(imageInfo, hValue, wValue, option)
         opts = {
           editable: true,